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hub controller for universal serial bus data sheet mos integrated circuit pd72012 document no. s13918ej3v0ds00 (3rd edition) date published april 2001 ns cp(k) printed in japan the pd72012 is a dedicated lsi for a hub connected to a universal serial bus (usb) system. it is an upgrade of nec?s pd72011. it complies with usb specification revision 1.1. by putting descriptors into rom, information such as a user?s vendor id can be implemented in the chip. features { compliant with chapter 11 (hub specifications) of usb specification 1.1. { descriptors into rom ? the user can customize the vendor id and product id by using mask rom option. { supports 5 kinds of string descriptors (for mask rom code product only) { on-chip sequencer ? there is an on-chip descriptor and request response sequencer. external initial setup and control is not needed and hub functions can be realized using only the pd72012. { downstream ports ? four or five ports can be selected using a pin function. { power modes ? bus power or self-power can be selected using a pin function (an external power control circuit is required). { corresponds to standard descriptor products ? two kinds of standard rom code products are provided. standard and hub class descriptors are on-chip in the pd72012. rom code: 003 (individual overcurrent monitoring type generic hub) rom code: 004 (collective overcurrent monitoring type generic hub) { supports two kinds of clock input ? 48 mhz oscillator input or a 4 mhz crystal resonator can be supported { power control ? port power control and overcurrent detection functions are on-chip. individual port control or collective control can be selected for these. ordering information part no. package pd72012cu-xxx 42-pin plastic sdip (15.24 mm (600)) pd72012gb-xxx-3b4 44-pin plastic qfp (10 10) 1999 the information in this document is subject to change without notice. before using this document, please confirm that this is the latest version. not all devices/types available in every country. please check with local nec representative for availability and additional information. the mark shows major revised points.
2 data sheet s13918ej3v0ds pd72012 serial interface engine endpoint0 repeater common control repeater buffer/ transceiver buffer/ transceiver endpoint1 pp1 dv dd buffer/ transceiver buffer/ transceiver buffer/ transceiver psse l x1 clksel pvsel os l buffer/ transceiver port control 1 port control 2 port control 3 port control 5 port control 4 d10 d11 d20 d21 d30 d31 d40 d41 d50 d51 power control output over current detect pp2 pp3 pp4 pp5 cs1 cs2 cs3 cs4 cs5 hub mode control ud 0 ud1 clk 48 mhz dpll dgnd clk /x 2 av dd1 av dd2 agnd1 agnd2 descriptor rom (standard/string) clk : connect to 48 mhz osc output x1, x2 : connect to 4 mhz xtal rst
data sheet s13918ej3v0ds 3 pd72012 pin configuration (top view) ? 42-pin plastic sdip (15.24 mm (600)) 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 dgnd pvsel pssel dgnd dv dd pp5 pp4 pp3 pp2 pp1 dv dd (buffer) clksel cs5 cs4 cs3 cs2 cs1 dgnd (buffer) dv dd av dd2 agnd2 42 41 40 39 38 37 36 35 34 33 32 31 30 29 28 27 26 25 24 23 22 rst ud0 ud1 d10 d11 dgnd d20 d21 d30 d31 dgnd d40 d41 d50 d51 dgnd osl av dd1 clk/x2 x1 agnd1
4 data sheet s13918ej3v0ds pd72012 ? 44-pin plastic qfp (10 10) 44 43 42 41 40 39 38 37 36 35 34 1 2 3 4 5 6 7 8 9 10 11 33 32 31 30 29 28 27 26 25 24 23 12 13 14 15 16 17 18 19 20 21 22 cs2 cs1 dgnd (buffer) dv dd av dd2 agnd2 agnd1 x1 clk/x2 av dd1 osl pp5 pp4 pp3 pp2 pp1 dv dd dv dd (buffer) clksel cs5 cs4 cs3 d20 d21 d30 d31 dgnd dgnd d40 d41 d50 d51 dgnd dv dd dgnd pssel pvsel dgnd rst ud0 ud1 d10 d11 dgnd
data sheet s13918ej3v0ds 5 pd72012 pin name agnd1 : analog gnd1 (xtal) agnd2 : analog gnd2 (dpll) av dd1 : analog v dd1 (xtal) av dd2 : analog v dd2 (dpll) clksel : clock frequency control clk/x2 : 48 mhz osc, 4 mhz xtal clock input cs1 : over current detect #1 cs2 : over current detect #2 cs3 : over current detect #3 cs4 : over current detect #4 cs5 : over current detect #5 d10 : downstream port #1 d+ d11 : downstream port #1 d? d20 : downstream port #2 d+ d21 : downstream port #2 d? d30 : downstream port #3 d+ d31 : downstream port #3 d? d40 : downstream port #4 d+ d41 : downstream port #4 d? d50 : downstream port #5 d+ d51 : downstream port #5 d? dgnd : digital gnd dgnd (buffer) : digital gnd (buffer) dv dd : digital v dd dv dd (buffer) : digital v dd (buffer) osl : osc suspend output pp1 : port power control #1 pp2 : port power control #2 pp3 : port power control #3 pp4 : port power control #4 pp5 : port power control #5 pssel : powered mode control pvsel : down port value control rst : reset ud0 : root port #0 d+ ud1 : root port #0 d? x1 : 4 mhz xtal clock input
6 data sheet s13918ej3v0ds pd72012 contents 1. pin functions ................................................................................................................ ...................................... 7 1.1 list of pin functions ....................................................................................................... .................................. 7 1.2 tables by pin function ...................................................................................................... ............................. 10 1.3 equivalent circuits of pins................................................................................................. ............................. 11 2. descriptors .................................................................................................................. .................................... 12 2.1 standard device descriptor.................................................................................................. .......................... 12 2.2 standard configuration descriptor ........................................................................................... ...................... 14 2.3 standard interface descriptor............................................................................................... .......................... 16 2.4 standard endpoint descriptor 1 .............................................................................................. ....................... 17 2.5 hub class descriptor........................................................................................................ ............................. 17 2.6 standard string descriptor 0 ................................................................................................ .......................... 21 2.7 standard string descriptors 1 through 5 ..................................................................................... .................. 21 3. electrical specifications .................................................................................................... ...................... 22 4. package drawings ............................................................................................................. ............................ 32 5. recommended soldering conditions ............................................................................................. ........ 34
data sheet s13918ej3v0ds 7 pd72012 1. pin functions 1.1 list of pin functions (1/3) pin no. note pin name i/o signal name function 1(6) rst i reset inputs reset signals. 2(7) ud0 i/o data0 connects to upstream port #0 d+ signal line. pull up to 3.3 v line using 1.5 k ? . 3(8) ud1 i/o data1 connects to upstream port #0 d? signal line. 4(9) d10 i/o data0 connects to downstream port #1 d+ signal line. pull down to gnd using 15 k ? . 5(10) d11 i/o data1 connects to downstream port #1 d? signal line. pull down to gnd using 15 k ? . 6(11) dgnd - dgnd connect to gnd. 7(12) d20 i/o data0 connects to downstream port #2 d+ signal line. pull down to gnd using 15 k ? . 8(13) d21 i/o data1 connects to downstream port #2 d? signal line. pull down to gnd using 15 k ? . 9(14) d30 i/o data0 connects to downstream port #3 d+ signal line. pull down to gnd using 15 k ? . 10(15) d31 i/o data1 connects to downstream port #3 d? signal line. pull down to gnd using 15 k ? . 11(16, 17) dgnd - dgnd connect to gnd. this pin is used as both pins 16 and 17 internally in the qfp product. 12(18) d40 i/o data0 connects to downstream port #4 d+ signal line. pull down to gnd using 15 k ? . 13(19) d41 i/o data1 connects to downstream port #4 d? signal line. pull down to gnd using 15 k ? . 14(20) d50 i/o data0 connects to downstream port #5 d+ signal line. pull down to gnd using 15 k ? . 15(21) d51 i/o data1 connects to downstream port #5 d? signal line. pull down to gnd using 15 k ? . 16(22) dgnd - dgnd (ts3) test pin of pd72012 (corresponds to ts3 pin in pd72011). connect to gnd. 17(23) osl o osc ctl pin that outputs high level on suspend. can be used by led switch or to turn oscillator on/off on suspend. caution for self-power, always input an oscillator output signal. if the clock is cut-off, subsequent operation my not be possible. note qfp pin numbers are shown in ( ).
8 data sheet s13918ej3v0ds pd72012 (2/3) pin no. note 1 pin name i/o signal name function 18(24) av dd1 - avdd1 power supply pin of on-chip clock drive circuit. to stabilize the power supply, connect directly to a stable power supply using the shortest wire possible or connect to gnd via a capacitor along the wire (3.3 v input). 19(25) clk / x2 i clock / xtal when you input a clock signal from an oscillator, input at the 48 mhz cmos level (5 v can be input). when using a 4 mhz crystal oscillator, connect the oscillator to this pin. 20(26) x1 i xtal when using a 4 mhz crystal oscillator, connect the oscillator to this pin. 21(27) agnd1 - agnd1 gnd pin of on-chip clock drive circuit. connect to gnd. 22(28) agnd2 - agnd2 gnd pin of on-chip frequency multiplier (pll). connect to gnd. 23(29) av dd2 - avdd2 power supply pin of on-chip frequency multiplier (pll). to stabilize the power supply, connect directly to a stable power supply using the shortest wire possible or connect to gnd via a capacitor along the wire (3.3 v input). 24(30) dv dd -dvdd (ts1) test pin of pd72012 (corresponds to ts1 pin in pd72011). connect to 3.3 v power supply. 25(31) dgnd (buffer) -dgnd (buffer) connect to gnd. 26(32) cs1 i portcurrent1 low active input pin that inputs overcurrent states detected by external circuit of downstream port #1. when not using this pin, connect it directly to v dd . note 2 27(33) cs2 i portcurrent2 low active input pin that inputs overcurrent states detected by external circuit of downstream port #2. when not using this pin, connect it directly to v dd . note 2 28(34) cs3 i portcurrent3 low active input pin that inputs overcurrent states detected by external circuit of downstream port #3. when not using this pin, connect it directly to v dd . note 2 29(35) cs4 i portcurrent4 low active input pin that inputs overcurrent states detected by external circuit of downstream port #4. when not using this pin, connect it directly to v dd . note 2 30(36) cs5 i portcurrent5 low active input pin that inputs overcurrent states detected by external circuit of downstream port #5. when not using this pin, connect it directly to v dd . note 2 notes 1. pin numbers for qfp are shown in ( ). 2. for details, refer to table 1-3 in 1.2 tables by pin function .
data sheet s13918ej3v0ds 9 pd72012 (3/3) pin no. note 1 pin name i/o signal name function 31(37) clksel i clk select pin for selecting whether to use 48 mhz oscillator or 4 mhz crystal oscillator (refer to table 1-1 ). 32(38) dv dd (buffer) -dvdd (buffer) connect to 3.3 v power supply. (39) dv dd - dvdd connect to 3.3 v power supply. this pin is used together with pin no. 32 internally in the shrink dip product. 33(40) pp1 o portpower#1 low active open drain output pin that controls downstream port #1 power supply. input the output of this pin to the power control element of an external circuit. if not using this pin, leave it unconnected. note 2 34(41) pp2 o portpower#2 low active open drain output pin that controls downstream port #2 power supply. input the output of this pin to the power control element of an external circuit. if not using this pin, leave it unconnected. note 2 35(42) pp3 o portpower#3 low active open drain output pin that controls downstream port #3 power supply. input the output of this pin to the power control element of an external circuit. if not using this pin, leave it unconnected. note 2 36(43) pp4 o portpower#4 low active open drain output pin that controls downstream port #4 power supply. input the output of this pin to the power control element of an external circuit. if not using this pin, leave it unconnected. note 2 37(44) pp5 o portpower#5 low active open drain output pin that controls downstream port #5 power supply. input the output of this pin to the power control element of an external circuit. if not using this pin, leave it unconnected. note 2 38(1) dv dd -dvdd (ts0) test pin of pd72012 (corresponds to ts0 pin in pd72011). connect to 3.3 v power supply. 39(2) dgnd - dgnd connect to gnd. 40(3) pssel i power sw pin that selects switching between bus power and self-power (refer to table 1-2 ). to make high level, pull up to 3.3 v. 41(4) pvsel i port value pin that selects switching between number (4 or 5) of downstream ports (refer to table 1-2 ). to make high level, pull up to 3.3 v. 42(5) dgnd - dgnd (ts2) test pin of pd72012 (corresponds to ts2 pin in pd72011). connect to gnd. notes 1. qfp pin numbers are shown in ( ). 2. for details, refer to table 1-4 of 1.2 tables by pin function .
10 data sheet s13918ej3v0ds pd72012 1.2 tables by pin function table 1-1. oscillator circuit switching control (clksel) clksel type of oscillator circuit l input clocks from 48 mhz oscillator h clock input using 4 mhz crystal resonator (drive circuit is incorporated) remark directly connect to v dd when using clksel=?h?. even 5 v is no trouble. table 1-2. power mode/downstream port number control (pssel, pvsel) pssel pvsel power mode port #1 port #2 port #3 port #4 port #5 l l self-power note 1 {{{{ l h self-power note 1 {{{{{ h l bus power note 2 {{{{ h h prohibited note 3 ????? notes 1. do not cut-off clock input when using self-power. if it is cut-off, internal functions stop and operation may not be possible even if clocks are input again. 2. when using bus power, up to four ports can be used. 3. the combination pssel=?h?, pvsel=?h? is prohibited. operation in this case is not guaranteed. remark also set according to this table when setting the number of ports in a mask rom code product to up to 5 ports. directly connect data lines of unused ports to gnd. table 1-3. handling of pins cs1 to cs5 according to setting of whubcharacteristics field of hub class descriptor whubcharacteristics bits 4, 3 cs1 cs2 cs3 cs4 cs5 0b00 common in all ports 0b01 port #1 port #2 port #3 port #4 port #5 0b10 or 0b11 not available not available not available not available not available remark connect pins cs1 to cs5 to the over current detect output pin of the power switch ic. clamp an unused or unavailable cs1 to cs5 pin to 3.3 v. table 1-4. handling of pins pp1 to pp5 according to setting of whubcharacteristics field of hub class descriptor whubcharacteristics bits 1, 0 pp1 pp2 pp3 pp4 pp5 0b00 common in all ports 0b01 port #1 port #2 port #3 port #4 port #5 remark connect pins pp1 to pp5 to the port power control input pin of the power switch ic. leave an unused or unavailable pp1 to pp5 pin open.
data sheet s13918ej3v0ds 11 pd72012 1.3 equivalent circuits of pins type equivalent circuit pins function 5 v tolerant input pin (schmitt) 5 v schmitt on-chip rst, cs1 to cs5 3.3 v schmitt input pin with 5 v tolerant. 5 v tolerant input pin 5 v clksel, pssel, pvsel 3.3 v input pin with 5 v tolerant. 5 v tolerant clock input pin 5 v x1, clk/x2 3.3 v dedicated clock input pin with 5 v tolerant. 5 v tolerant 3.3 v output pin 3.3 v, i ol =6 ma osl 3.3 v output pin with 5 v tolerant. pull-up to 5 v line is possible. open-drain output pin pp1 to pp5 open-drain structure pin. usb buffer in/out(d+) (d ? ) rxdata rxse0 txdata ud0, ud1, d10 to d50, d11 to d51 usb buffer. the two kinds of receiver are data receiver and se0 (single end 0) receiver on the receiving side. on the sending side, rise and fall times are managed in the last stage of the buffer in order to create a difference between low-speed and full-speed.
12 data sheet s13918ej3v0ds pd72012 2. descriptors caution for a mask rom code product, we release the software to make a data for mask rom option. please contact to local nec to get the software if you would like to make mask rom code product. 2.1 standard device descriptor (1/2) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 blength 1 shows the size in bytes of the standard device descriptor. 0x12 0x12 0x12 1 bdescriptortype 1 shows that this is a standard device descriptor. 0x01 0x01 0x01 2bcdusb 2 shows that the pd72012 compliant with usb specifications revision 1.1. 0x0110 0x0110 0x0110 4 bdeviceclass 1 hub class code defined by usb (hub_classcode=?0x09?). 0x09 0x09 0x09 5 bdevicesubclass 1 hub subclass code defined by usb. not defined in hub class. 0x00 0x00 0x00 6 bdeviceprotocol 1 protocol code defined by usb. not defined in hub class. 0x00 0x00 0x00 7 bmaxpacketsize0 1 shows the maximum packet size in bytes of endpoint 0 of the pd72012. 0x08 0x08 0x08 8 idvendor 2 shows the vendor id code registered in usb standards. for a standard rom code product (003, 004), this is ?0x0409? (nec vendor id). when using in a mask rom code product, set a vendor id for each manufacturer registered in usb standards. 0x0409 0x0409 0xxxxx 10 idproduct 2 shows the product id code registered in usb standards. for a standard rom code product (003, 004), this is ?0x55ab? (generic_hub). in a mask rom code product, this value can be set as you wish. 0x55ab 0x55ab 0xxxxx 12 bcddevice 2 shows the version number of the pd72012 using decimal notation in xx.xx format. for a standard rom code product (003, 004), this is ?0x0200? (ver. 2.0). when using in a mask rom code product, manage by varying the number for each rom code. 0x0200 0x0200 0xxxxx
data sheet s13918ej3v0ds 13 pd72012 (2/2) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 14 imanufacture 1 shows the index of the string descriptor for a comment about a manufacturer using the hub. since not used for a standard rom code product (003, 004), its value is ?0x00?. when using this for a mask rom code product, set it to ?0x01?. 0x00 0x00 0x00 or 0x01 15 iproduct 1 shows the index of the string descriptor for a comment about a product using the hub. since not used for a standard rom code product (003, 004), its value is ?0x00?. when using this for a mask rom code product, set it to ?0x02?. 0x00 0x00 0x00 or 0x02 16 iserialnumber 1 shows the index of the string descriptor for the serial number of a product using the hub. since not used for a standard rom code product (003, 004), its value is ?0x00?. when using this for a mask rom code product, set it to ?0x03?. 0x00 0x00 0x00 or 0x03 17 bnumconfiguration 1 shows the number of configurations that can be set for this hub. its value is fixed at ?0x01? for the pd72012 0x01 0x01 0x01
14 data sheet s13918ej3v0ds pd72012 2.2 standard configuration descriptor (1/2) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 blength 1 shows the size in bytes of the standard configuration descriptor. 0x09 0x09 0x09 1 bdescriptortype 1 shows that this is a standard configuration descriptor. 0x02 0x02 0x02 2 wtotallength 2 shows the total length of descriptors returned on a host get_descriptor (configuration) request (standard configuration, standard interface, each standard endpoint, and hub class descriptors). 0x0019 0x0019 0x0019 4 bnuminteface 1 shows the number of interfaces that can be set in this configuration. its value is fixed at ?0x01? for the pd72012. 0x01 0x01 0x01 5 bconfigurationvalue 1 specifying this value in a set_configuration request from the host sets this configuration in the pd72012. 0x01 0x01 0x01 6 iconfiguration 1 shows the index of the string descriptor for a comment about the configuration of a product using the hub. since not used for a standard rom code product (003, 004), its value is ?0x00?. when using this for a mask rom code product, set it to ?0x04?. 0x00 0x00 0x00 or 0x04 7 bmattributes 1 uses a bitmap to show the power supply attributes of this configuration of the pd72012. caution since the information ?self-power? in the status returned on a get_status request from the host reflects the level input to the pssel pin, be sure that there are no inconsistencies. ?0xe0?: corresponds to both ?bus power? and ?self- power? modes and shows that ?remote wakeup? is supported. a standard rom code product has this setting. use this setting when using in ?self-power? mode only or when switching between ?bus power? and ?self-power? by performing a pssel pin function. ?0xa0?: corresponds to ?bus power? mode only and shows that ?remote wakeup? is supported. make this setting when using in ?bus power? mode only. 0xe0 0xe0 0xe0 or 0xa0
data sheet s13918ej3v0ds 15 pd72012 (2/2) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 8 maxpower 1 shows the maximum current the hub consumes in normal operation in hexadecimal notation using units of 2 ma. since it provides 1 unitload (= 100 ma) to each port downstream, this is not included in maxpower. however, if a non-removable device is connected downstream, this is included (for details inquire in the usb-if). switching the input level of the pssel pin changes the value that is returned. in short, two-way setting of the pd72012 is possible for ?self-power? and ?bus power?. mask rom code product for a ?bus power? setting (pssel=?h?), normally set this to 0x32 (100 ma). however, when making a subordinate port a non-removable port, add the current consumed by the device connected to that port when you set the maxpower value. on the other hand, for a ?self-power? setting (pssel=?l?), 0x32 (100 ma) is fixed. 0x32 (pssel=?l?) or 0x32 (pssel=?h?) 0x32 (pssel=?l?) or 0x32 (pssel=?h?) 0x32 (pssel=?l?) or 0x32 (pssel=?h?) (recommen- ded value)
16 data sheet s13918ej3v0ds pd72012 2.3 standard interface descriptor value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 blength 1 shows the size in bytes of the standard interface descriptor. 0x09 0x09 0x09 1 bdescriptortype 1 shows that this is a standard interface descriptor. 0x04 0x04 0x04 2 binterfacenumber 1 if there are multiple interfaces, the host specifying this value in a set_interface request selects this interface. this is ?0x00? for the pd72012. 0x00 0x00 0x00 3 balternatesetting 1 this value is used if there is an alternate setting of the interface. it is ?0x00? for the pd72012. 0x00 0x00 0x00 4 bnumendpoints 1 shows the number of endpoints defined in this interface. 0x01 0x01 0x01 5 bintefaceclass 1 hub class code defined by usb (hub_classcode=?0x09?). 0x09 0x09 0x09 6 binterfacesubclass 1 hub subclass code defined by usb. 0x00 0x00 0x00 7 binterfaceprotocol 1 protocol code defined by usb. not defined in hub class. 0x00 0x00 0x00 8 iinteface 1 shows the index of the string descriptor for a comment about the interface of a product using the hub. since not used for a standard rom code product (003, 004), its value is ?0x00?. when using this for a mask rom code product, set it to ?0x05?. 0x00 0x00 0x00 or 0x05
data sheet s13918ej3v0ds 17 pd72012 2.4 standard endpoint descriptor 1 value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 blength 1 shows the size in bytes of standard endpoint descriptor 1. 0x07 0x07 0x07 1 bdescriptortype 1 shows that this is a standard endpoint descriptor. 0x05 0x05 0x05 2 bendpointaddress 1 shows the endpointaddress of endpoint 1. 0x81 0x81 0x81 3 bmattributes 1 shows the attributes of endpoint 1 (interrupt=?0x03?). 0x03 0x03 0x03 4 wmaxpacketsize 2 shows the maximum packet size of endpoint 1. 0x0001 0x0001 0x0001 6 binterval 1 for an interrupt attribute endpoint, shows the polling time in milliseconds using hexadecimal notation. for a hub, the maximum value that can be set (?0xff?) is entered. 0xff 0xff 0xff 2.5 hub class descriptor (1/4) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 bdesclength 1 shows the size in bytes of the hub class descriptor. 0x09 0x09 0x09 1 bdescriptortype 1 shows that this is a hub class descriptor. 0x29 0x29 0x29 2 bnbrport 1 shows the number of downstream ports the hub supports in a set. for a standard rom code product (003, 004), the value varies according to the pvsel pin setting. it is ?0x05? for a 5-port hub (pvsel=?h?), and ?0x04? for a 4-port hub (pvsel=?l?). for a mask rom code product, the value in this field can be set arbitrarily. since two-way setting by switching the pvsel input level is possible for these values, perform two-way specification. note that the values that are set for pvsel=?h? are from ?0x01? to ?0x05?, and the values that are set for pvsel=?l? are from ?0x01? to ?0x04?. the pd72012 enables ports in turn starting from the smallest port number. 0x04 (pvsel=?l?) or 0x05 (pvsel=?h?) 0x04 (pvsel=?l?) or 0x05 (pvsel=?h?) 0xxx (pvsel=?l?) or 0xyy (pvsel=?h?)
18 data sheet s13918ej3v0ds pd72012 (2/4) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 3 whubcharacteristics 2 uses a bitmap to show attributes of the pd72012. the meaning of each bit is as follows. bits 1,0: show the power switch switching attribute. ?0b00?: enable all power switches at once. this is the value for a standard rom code product (004). if this value is set for a mask rom code product, all of pins pp1 to pp5 operate at once. ?0b01?: enable power switches individually for each port. this is the value for a standard rom code product (003). if this value is set for a mask rom code product, pins pp1 to pp5 operate individually. ?0b1x?: reserved. used only on 1.0 compliant hubs that implement no power switching. you can not use this setting for pd72012. bit 2: identifier of a compound device. set this to ?0b0? when using the pd72012 as a unit hub and to ?0b1? when using it as compound devices. ?0b0?: shows that the pd72012 is standalone hub unit. ?0b1?: shows that pd72012 is a part of compound devices. bits 4,3: show the overcurrent protection switching attribute. ?0b00?: monitor overcurrent for all ports in a batch. since this is the value for a standard rom code product (004), a circuit that can control all overcurrent protection functions at once externally is needed. if this value is set for a mask rom code product, when one of the pins cs1 to cs5 detect overcurrent, hub reports overcurrent on per- hub basis. 0x0009 0x0000 0x00xx
data sheet s13918ej3v0ds 19 pd72012 (3/4) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 3 whubcharacteristics 2 ?0b01?: monitor overcurrent for each port individually. since this is the setting for a standard rom code product (003), a circuit that can individually control overcurrent protection functions externally is needed. if this value is set for a mask rom code when one of the pins cs1 to cs5 detect overcurrent, hub reports overcurrent on per- port basis. ?0b1x?: shows that there is no overcurrent protection function. this setting is allowed only for bus-powered hubs that do not implement over-current protection. if this value is set for a mask rom code product, clamp all of the pins cs1 to cs5 to 3.3 v. bits 15-5: these bits are reserved in the usb standard for future extended functions. for a mask rom code product, be sure to set these bits to ?0?. caution be sure to set the values in bits 3 and 0 the same in mask rom code product settings. 0x0009 0x0000 0x00xx 5 bpoweron2pwrgood 1 shows the time from detecting a device at a port and starting the power-on sequence until the power supply stabilizes. two milliseconds are taken as one unit. this is 100 ms for the pd72012. 0x32 0x32 0x32 6 bhubcontrcurrent 1 shows the maximum current consumption of the hub in ma. note that this value does not show the rated current consumption value for the pd72012 itself. for a standard rom code product, ?0x50? is applied for compatibility with the pd72011. this value can be defined for a mask rom code product. however, this value should not be less than the current consumption value of the pd72012 that is described in 3. electrical specifications. 0x50 0x50 0xxx
20 data sheet s13918ej3v0ds pd72012 (4/4) value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 7 bdeviceremovable 1 uses a bitmap to show whether or not removable devices are connected to hub ports. ?1? shows that the connected device is non- removable, and ?0? shows that it is removable. set ?1? if a port that is used cannot be connected nor disconnected using an external circuit. note that, if a non-removable device is connected to a downstream port of the hub, bit 2 of whubcharacteristics field should be set to ?1?. when the number of ports that can be port enabled is limited by the pvsel pin setting or mask rom code product settings, set ?0? for all ports that are not port enabled. the meaning of the bitmap is as follows. bit 0: always set to ?0?. bit 1: if ?1?, the device connected to port 1 is non-removable. bit 2: if ?1?, the device connected to port 2 is non-removable. bit 3: if ?1?, the device connected to port 3 is non-removable. bit 4: if ?1?, the device connected to port 4 is non-removable. bit 5: if ?1?, the device connected to port 5 is non-removable. bits 7,6: always set to ?0?. for a standard rom code product (003, 004), all ports are removable. 0x00 0x00 0xxx 8 bportpwrctrlmask 1 this field exists for reasons of compatibility with software written for 1.0 compliant devices. all bits in this field should be set to 1b. 0xff 0xff 0xff
data sheet s13918ej3v0ds 21 pd72012 2.6 standard string descriptor 0 standard string descriptor 0 cannot be used in a standard rom code product. value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 blength 1 shows the size of standard string descriptor 0. 0x00 0x00 0x04 1 bdescriptortype 1 shows that this is a standard string descriptor. 0x00 0x00 0x03 2 wlangid[0] 2 shows the languageid of standard string descriptor 0. the languageid used is ?0x0409? (generic). the pd72012 uses this languageid in common for all string descriptors. 0x0000 0x0000 0x0409 2.7 standard string descriptors 1 through 5 standard string descriptors 1 through 5 cannot be used in a standard rom code product. this format is the common format for standard string descriptors #1 through #5 of the pd72012. value standard rom code product no. field size (bytes) contents 003 004 mask rom code product 0 blength 1 shows the size of standard string descriptors 1 through 5. its value is fixed at 66 bytes (0x42). the string itself is this size ?2 (64 bytes). 0x00 0x00 0x42 1 bdescriptortype 1 shows that this is a standard string descriptor. 0x00 0x00 0x03 2 bstring 64 stores the standard string descriptor in unicode. a string requires 2 bytes for each character. strings of up to 32 characters can be specified. if there are white space characters, pad using null characters (0x0000). all 0 all 0 ? remark five kinds of standard string descriptors can be defined and these describe the following contents using 32 unicode characters. index contents 1 comment about manufacturer (manufacture) that uses hub 2 comment about product (product) that uses hub 3 serial number (serialnumber) of product that uses hub 4 comment about configuration (configuration) of product that uses hub 5 comment about interface (interface) of product that uses hub refer to ?the unicode standard, worldwide character encoding, version 1.0, volume 1 and 2?, the unicode consortium, addison-wesley publishing company, reading, massachusetts regarding unicode.
22 data sheet s13918ej3v0ds pd72012 3. electrical specifications absolute maximum ratings parameter symbol conditions rating unit power supply voltage v dd ?0.5 to +4.6 v usb buffer ud0, ud1, d10 to d50, d11 to d51 ?0.5 to +4.6 v clock input buffer x1, clk/x2 ?0.5 to +6.6 v 5 v schmitt input buffer rst, cs1 to cs5 ?0.5 to +6.6 v input voltage v i 5 v input buffer clksel, pssel, pvsel ?0.5 to +4.6 v usb buffer ud0, ud1, d10 to d50, d11 to d51 ?0.5 to +4.6 v open drain output buffer pp1 to pp5 ?0.5 to +6.6 v output voltage v o 5 v output buffer osl ?0.5 to +6.6 v output current i o 100 ma operating ambient temperature t a 0 to +70 c storage temperature t stg ?65 to +150 c caution product quality may suffer if the absolute maximum rating is exceeded even momentarily for any parameter. that is, the absolute maximum ratings are rated values at which the product is on the verge of suffering physical damage, and therefore the product must be used under conditions that ensure that the absolute maximum ratings are not exceeded. recommended operating conditions (t a = 0 to +70 c) parameter symbol conditions min. typ. max. unit power supply voltage v dd 3.0 3.3 3.6 v high level input voltage v ih 2.0 v dd v low level input voltage v il usb pin ud0, ud1, d10 to d50, d11 to d51 00.8v high level input voltage v ih 2.3 5.5 v low level input voltage v il 5 v schmitt input pin rst, cs1 to cs5 00.8v input rise time for rst tr 0.3 v to 2.7 v 10 ms high level input voltage v ih 2.0 5.5 v low level input voltage v il 5 v input pin clksel, pssel, pvsel 00.8v high level input voltage v ih 2.3 5.5 v low level input voltage v il clock input pin (at 48 mhz input) x1, clk/x2 00.8v oscillator input (+100 ppm) 48.00 mhz clock input frequency f ck oscillator input (+50 ppm) 4.0 mhz
data sheet s13918ej3v0ds 23 pd72012 recommended oscillator circuit constants crystal oscillator (t a = 0 to +70 c) oscillator circuit constant (pf) manufacturer product name frequency (mhz) c1 c2 at-49 4.000 10 10 daishinku corp. hc-49/u 4.000 9 9 x1 x2 c2 c1 cautions 1. the oscillator circuit constants, which show the conditions for stabilizing and oscillating, do not guarantee oscillation frequency accuracy. if the mounting circuit requires oscillation frequency accuracy, it must be possible to adjust the oscillation frequency of the oscillator in the mounting circuit. therefore, ask the manufacturer of the oscillator you use about this directly. 2. when using an oscillator circuit, wire portions shown using broken lines in the figure as follows to avoid affecting wire capacitance. ? keep the wiring length as short as possible. ? do not cross the wiring with the other signal lines. ? do not route the wring near a signal line through which a high fluctuating current flows. ? always keep the ground point of the oscillator capacitor to the same potential as v ss . ? do not ground the capacitor to a ground pattern in which a high current flows. ? do not fetch signals from the oscillator.
24 data sheet s13918ej3v0ds pd72012 dc characteristics (v dd = 3.3 v +0.3 v, t a = 0 to +70 c) (1) current consumption parameter symbol conditions min. typ. max. unit current consumption i dd f ck = 48 mhz, 4 mhz 40 ma current consumption (during suspend) i dd(sus) 120 a (2) usb input/output buffer parameter symbol conditions min. typ. max. unit high level output voltage v oh 14.2 k ? r h for gnd 2.8 3.6 v low level output voltage v ol 1.42 k ? r l for 3.6 v 00.3v differential common mode range v cm includes v di range absolute value of (d+) ? (d?) 0.2 vmin 0.8 2.5 v data line leakage current in input pin high impedance state i lo 0 v < v in < 3.3 v 10 a crossover output voltage v crs 1.3 2.0 v (3) 5 v output buffer parameter symbol conditions min. typ. max. unit high level output voltage v oh i oh = ?6 ma 2.4 v low level output voltage v ol i oh = 6 ma 0.4 v (4) open drain output buffer parameter symbol conditions min. typ. max. unit low level output voltage v ol i ol = 6 ma 0.4 v
data sheet s13918ej3v0ds 25 pd72012 ac characteristics (v dd = 3.3 v +0.3 v, t a = 0 to +70 c) (1) full-speed output driver characteristics parameter symbol conditions min. typ. max. unit output rise time (fs) output fall time (fs) t fr , t ff ud0, ud1 c l = 50 pf, t a = 25 c, 10% to 90% 420ns crossover output voltage v crs 1.3 2.0 v driver output resistance z drv 28 44 ? full-speed data rate t fdrate 12mbps 0.25% 11.97 12.03 mbps t dj1 continuous transition 3.5 ns differential driver jitter (fs) t dj2 pair transition 4.0 ns source jitter on se0 transition from differential transition (fs) t fdeop ?2 +5 ns t jr1 continuous transition 18.5 ns receiver jitter (fs) t jr2 pair transition 9ns one-way propagation delay t fprop 26 ns eop source se0 interval t feopt 160 175 ns eop receiver se0 interval t feopr accept as effective eop. 82 ns se0 time interval on differential transition t fst 14 ns (2) hub repeater characteristics (full-speed) parameter symbol conditions min. typ. max. unit output rise time (ls) output fall time (ls) t r , t f d10 to d50, d11 to d51 c l = 50 pf, t a = 25 c, 10% to 90% 420ns t hdd1 with cable 70 ns differential data delay (ls) t hdd2 without cable 44 ns t hdj1 continuous transition 3 ns differential driver jitter (ls) t hdj2 pair transition 1 ns data bit length distortion after sop (ls) t fsop +5 ns hub eop delay for t hdd1 t feopd 015ns eop output width skew (ls) t fhesk 15 ns
26 data sheet s13918ej3v0ds pd72012 (3) hub event timing parameter symbol conditions min. typ. max. unit time to detect downstream port connection event (wake-up hub) 2.5 2000 s time to detect downstream port connection event (suspend hub) t dcnn 2.5 12000 s time to detect disconnect event at downstream port (wake-up hub) 22.5 s time to detect disconnect event at downstream port (suspend hub) t ddis 2 10000.0 s period to drive resume at downstream port (from control hub only) t drsmdn 20 ms time from detecting downstream resume to re-broadcasting t ursm 100 s time to detect long k state from upstream t urlk 2.5 5.5 s time to detect long se0 from upstream t urlse0 2.5 10000 s period to repeat se0 upstream t urpse0 23 fs bit time period to transmit se0 upstream after eof1 t udeop optional 2 fs bit time
data sheet s13918ej3v0ds 27 pd72012 (4) device event timing parameter symbol conditions min. typ. max. unit time from internal power becoming effective until device pulls d+/d? above vihz (min.) (signal attach) t sigatt 100 ms time for usb system software to perform debounce after attach t attdb 100 ms time for which bus is continuously in idling state, maximum time device draws more power than suspend power t 2susp 10 ms maximum value of average suspend time t susavgi 1s period to drive upstream on resume t drsmup 115ms resume restore period t rsmrcy supplied by usb system software 10 ms time to detect reset from upstream t detrst same as t urlse0 2.5 10000 s reset restore time t rstrcy 10 ms inter-packet delay t ipd 2 bit time inter-packet delay of device responses using detachable cable t pdrsp1 6.5 bit time inter-packet delay of device responses using captive cable t pdrsp2 7.5 bit time setaddress() completion time t dsetaddr 50 ms time to complete standard request without data stage t drqcmpltnd 50 ms time to deliver first and subsequent data (excluding last) for standard request t dretdata1 500 ms time to deliver last data for standard request t dretdatan 50 ms
28 data sheet s13918ej3v0ds pd72012 measurement conditions (1) differential data jitter t period differential data lines crossover points pair transition n t period + t xdj2 continuous transition n t period + t xjr1 (2) eop transition skew and eop length differential t period differential data lines crossover point extension crossover points source eop width: t feopt , t leopt from differential data until se0 skew n t period + t deop receiver eop width: t feopr , t leopr (3) permissible range of receiver jitter differential data lines pair transition n t period + t jr2 t period continuous transition n t period + t jr1 t jr t jr1 t jr2 remark t period is the data rate of a receiver that has the range that is defined in paragraph 7.1.11 of usb specification revision 1.1.
data sheet s13918ej3v0ds 29 pd72012 (4) hub differential delay, differential jitter, and sop distortion 50% point of initial swing v ss downstream port of hub upstream end of cable v ss (b) downstream hub delay excluding cable hub operation jitter: t hdj1 = t hddx (j) ? t hddx (k) or t hddx (k) ? t hddx (j) continuous transition t hdj2 = t hddx (j) ? t hddx (j) or t hddx (k) ? t hddx (k) pair transition bit after sop width distortion (same as data jitter of next transition of sop): t fsop = t hddx (next j) ? t hddx (sop) the low-speed timing below is determined by the same method. t lhdd , t ldhj1 , t ldjh2 , t luhj1 , t lujh2 , and t lsop (a) downstream hub delay including cable downstream end of hub hub delay downstream t hdd1 crossover point 50% point of initial swing hub delay downstream t hdd2 upstream port of hub crossover point v ss downstream port of hub v ss (c) upstream hub delay with and without cable upstream port or end of cable hub delay upstream t hdd1 , t hdd2 crossover point v ss v ss
30 data sheet s13918ej3v0ds pd72012 (5) hub eop delay and eop skew 50% point of initial swing v ss (b) downstream eop delay excluding cable eop delay: t eopd = t eopy ? t ehddx (t eopy means apply this expression to t eop? and t eop+ .) eop skew: t hesk = t eop+ ? t eop? the low speed timing below is determined by the same method. t leopd , t lhesk upstream end of cable upstream port or end of cable (c) downstream eop delay with and without cable expansion crossover points downstream port t eop- t eop+ v ss t eop+ t eop- downstream port of hub v ss t eop+ t eop- downstream end of hub v ss (a) downstream eop delay including cable expansion crossover points expansion crossover points upstream port of hub v ss v ss
data sheet s13918ej3v0ds 31 pd72012 cs timing chart 500 sec hub power supply up port d+ line pp pin output cs pin input cs pin operation region power supply on bus power: up port connection self-power: power supply on bus reset port power supply on device connection inrush current overcurrent generation output cut-off cs active period cs detection delay time 500 sec 500 sec 500 sec remark the active period of the cs pin is in effect only when the pp pin is on. there is a delay time of approximately 500 sec duration at the cs pin.
32 data sheet s13918ej3v0ds pd72012 4. package drawings item millimeters a b c f g h i j k 39.13 max. 1.778 (t.p.) 3.2 0.3 0.51 min. 4.31 max. 1.78 max. 0.17 15.24 (t.p.) 5.08 max. n 0.9 min. r p42c-70-600a-2 c d notes 1. each lead centerline is located within 0.17 mm of its true position (t.p.) at maximum material condition. d0.50 0.10 m0.25 + 0.10 ? 0.05 0 15 m n l 13.2 2. item "k" to center of leads when formed parallel. 42 1 22 21 m r b f 42-pin plastic sdip (15.24mm(600)) i h g k l j a
data sheet s13918ej3v0ds 33 pd72012 33 34 22 44 1 12 11 23 44-pin plastic qfp (10x10) item millimeters a b d g 13.6 0.4 10.0 0.2 0.15 1.0 i 13.6 0.4 j p44gb-80-3b4-5 c 10.0 0.2 0.8 (t.p.) k 1.8 0.2 l 0.8 0.2 f1.0 n p q s 0.10 2.7 0.1 0.1 0.1 3.0 max. r5 5 h0.35 + 0.08 ? 0.07 m0.17 + 0.08 ? 0.07 i j detail of lead end m c d a b q r k m l p s s n g f note each lead centerline is located within 0.15 mm of its true position (t.p.) at maximum material condition. h s
34 data sheet s13918ej3v0ds pd72012 5. recommended soldering conditions the pd72012 should be soldered and mounted under the following recommended conditions. for the details of the recommended soldering conditions, refer to the document semiconductor device mounting technology manual (c10535e) . for soldering methods and conditions other than those recommended below, contact your nec sales representative. surface mount type soldering conditions pd72012gb-xxx-3b4: 44-pin plastic qfp (10 10) soldering method soldering conditions recommended condition code infrared reflow peak package temperature: 235 c, time: 30 sec. max. (210 c min.), count: three times or less ir35-00-3 vps peak package temperature: 215 c, time: 40 sec. max. (200 c min.), count: three times or less vp15-00-3 wave soldering solder bath temperature: 260 c max., time: 10 sec. max., count: once, preheating temperature: 120 c max. (package surface temperature) ws60-00-1 pin partial heating pin temperature: 300 c max., time: 3 sec. max. (per device side) ? caution avoid using different soldering methods together. (however, the pin partial heating method is excluded.) through-hole type soldering conditions pd72012cu-xxx: 42-pin plastic sdip (15.24 mm (600)) soldering method soldering conditions wave soldering (pins only) solder bath temperature: 260 c max., time: 10 sec. max. pin partial heating pin temperature: 300 c max., time: 3 sec. max. (per pin) caution apply wave soldering only to the pins, and exercise care that solder does not directly contact the package.
data sheet s13918ej3v0ds 35 pd72012 notes for cmos devices 1 precaution against esd for semiconductors note: strong electric field, when exposed to a mos device, can cause destruction of the gate oxide and ultimately degrade the device operation. steps must be taken to stop generation of static electricity as much as possible, and quickly dissipate it once, when it has occurred. environmental control must be adequate. when it is dry, humidifier should be used. it is recommended to avoid using insulators that easily build static electricity. semiconductor devices must be stored and transported in an anti-static container, static shielding bag or conductive material. all test and measurement tools including work bench and floor should be grounded. the operator should be grounded using wrist strap. semiconductor devices must not be touched with bare hands. similar precautions need to be taken for pw boards with semiconductor devices on it. 2 handling of unused input pins for cmos note: no connection for cmos device inputs can be cause of malfunction. if no connection is provided to the input pins, it is possible that an internal input level may be generated due to noise, etc., hence causing malfunction. cmos devices behave differently than bipolar or nmos devices. input levels of cmos devices must be fixed high or low by using a pull-up or pull-down circuitry. each unused pin should be connected to v dd or gnd with a resistor, if it is considered to have a possibility of being an output pin. all handling related to the unused pins must be judged device by device and related specifications governing the devices. 3 status before initialization of mos devices note: power-on does not necessarily define initial status of mos device. production process of mos does not define the initial operation status of the device. immediately after the power source is turned on, the devices with reset function have not yet been initialized. hence, power-on does not guarantee out-pin levels, i/o settings or contents of registers. device is not initialized until the reset signal is received. reset operation must be executed immediately after power-on for devices having reset function.
pd72012 the export of this product from japan is prohibited without governmental license. to export or re-export this product from a country other than japan may also be prohibited without a license from that country. please call an nec sales representative. m8e 00. 4 the information in this document is current as of april, 2001. the information is subject to change without notice. for actual design-in, refer to the latest publications of nec's data sheets or data books, etc., for the most up-to-date specifications of nec semiconductor products. not all products and/or types are available in every country. please check with an nec sales representative for availability and additional information. no part of this document may be copied or reproduced in any form or by any means without prior written consent of nec. nec assumes no responsibility for any errors that may appear in this document. nec does not assume any liability for infringement of patents, copyrights or other intellectual property rights of third parties by or arising from the use of nec semiconductor products listed in this document or any other liability arising from the use of such products. no license, express, implied or otherwise, is granted under any patents, copyrights or other intellectual property rights of nec or others. descriptions of circuits, software and other related information in this document are provided for illustrative purposes in semiconductor product operation and application examples. the incorporation of these circuits, software and information in the design of customer's equipment shall be done under the full responsibility of customer. nec assumes no responsibility for any losses incurred by customers or third parties arising from the use of these circuits, software and information. while nec endeavours to enhance the quality, reliability and safety of nec semiconductor products, customers agree and acknowledge that the possibility of defects thereof cannot be eliminated entirely. to minimize risks of damage to property or injury (including death) to persons arising from defects in nec semiconductor products, customers must incorporate sufficient safety measures in their design, such as redundancy, fire-containment, and anti-failure features. nec semiconductor products are classified into the following three quality grades: "standard", "special" and "specific". the "specific" quality grade applies only to semiconductor products developed based on a customer-designated "quality assurance program" for a specific application. the recommended applications of a semiconductor product depend on its quality grade, as indicated below. customers must check the quality grade of each semiconductor product before using it in a particular application. "standard": com puters, office equipment, communications equipment, test and measurement equipment, audio and visual equipment, home electronic appliances, machine tools, personal electronic equipment and industrial robots "special": transportation equipment (automobiles, trains, ships, etc.), traffic control systems, anti-disaster systems, anti-crime systems, safety equipment and medical equipment (not specifically designed for life support) "specific": aircraft, aerospace equipment, submersible repeaters, nuclear reactor control systems, life support systems and medical equipment for life support, etc. the quality grade of nec semiconductor products is "standard" unless otherwise expressly specified in nec's data sheets or data books, etc. if customers wish to use nec semiconductor products in applications not intended by nec, they must contact an nec sales representative in advance to determine nec's willingness to support a given application. (note) (1) "nec" as used in this statement means nec corporation and also includes its majority-owned subsidiaries. (2) "nec semiconductor products" means any semiconductor product developed or manufactured by or for nec (as defined above). ? ? ? ? ? ?

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