dm9161ci industrial-temperature 10/100 mbps fast ethernet physical layer single chip transceiver preliminary 1 version: 1.0 2012/2/20 1. features fully complies with ieee 802.3 / ieee 802.3u 10base-t/ 100base-tx, ansi x3t12 tp-pmd 1995 standards support hp mdi/mdi-x auto crossover function (hp auto-mdix) support auto-negotiation function, compliant with ieee 802.3u fully integrated physical layer transceiver on-chip filtering with direct interface to magnetic transformer selectable repeater or node mode selectable mii or rmii (reduced mii) mode for 100base-tx and 10base-tx. selectable mii or gpsi (7-wired) mode for 10base-t selectable full-duplex or half-duplex operation mii management interface with mask-able interrupt output capability provide loopback mode for easy system diagnostics led status outputs indicate link/ activity, speed10/100 and full-duplex/collision. support dual-led optional control single low power supply of 3.3v with an advanced cmos technology lower power consumption modes: o power reduced mode (cable detection) o power down mode o selectable tx drivers for 1:1 or 1.25:1 transformers for additional power reduction. 1.25: 1 transformers only when hp auto-mdix disable. compatible with 3.3v and 5.0v tolerant i/os supports industrial-temperature (-40 ~ +85 ) pin to pin compatible with dm9161a/b dsp architecture phy transceiver. 48-pin lqfp, 0.18um process 2. general description davicom?s dm9161ci is a industrial- temperature physical layer, low power, and single-chip 10base-t/100base-tx transceiver specifically designed for consumer electronics, industrial, and enterprise applications. through using a cmos process, the dm9161ci has the advantage of ensuring both high performance and savings in power consumption. through utilization of automatic media speed and protocol selection, the auto-negotiation function is strongly supported in the dm9161ci. then due to the built-in wave shaping filter, the dm9161ci has a significant convenience of not requiring an external filter to transport signals to the media in 10base-t or 100base-tx during ethernet operation. through its media independent interface (mii), the dm9161ci not only connects the medium access control (mac) layer, but the mii also ensure a high inter-operability and flexibility with different vendors. in media usage applications, the dm9161ci provides a direct interface either to an unshielded twisted pair category 5 cable (utp5) for 100base-tx fast ethernet, or an utp5/utp3 cable for 10base-t ethernet. the dm9161ci contains the entire physical layer functions of 100base-tx. those physical layer functions are defined by ieee802.3u include the physical coding sub layer (pcs), physical medium attachment (pma), twisted pair physical medium dependent sub layer (tp-pmd), 10base-tx encoder/decoder (enc/dec), and twisted pair media access unit (tpmau).
dm9161ci industrial-temperature 10/100 mbps fast ethernet physical layer single chip transceiver preliminary 2 version: 1.0 2012/2/20 3. applications ip stb router ipc internet radio ip cam dvr voip cpe (ata, ip phone, video phone) 4. block diagram 5. order information part number pin count package dm9161ciep 48 lqfp davicom semiconductor, inc. no.6, li-hsin rd.vi, science park, hsin-chu, taiwan, r.o.c. tel: 886-3-5798797 fax: 886-3-5646929 e-mail: sales@davicom.com.tw
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