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| PI7C8152A ENHANCED 2-PORT PCI-to-PCI BRIDGE INTEL 21152 COMPARISON FEATURE COMPARISON: PI7C8152A vs. INTEL 21152 Features: Feature Interfaces ! Complies with the following specifications: PCI Local Bus Specification PCI-to-PCI Bridge Specification PCI Bus Power Management Interface Specification ! 3.3V and 5V signaling environments ! Concurrent primary and secondary bus operations ! 66MHz support Memory Buffer Architecture ! Dynamic Prefetching Control ! Posted memory write commands in each direction ! Read data buffer in each direction Bus Arbitration ! Programmable internal arbiter for the secondary bus with support for up to 4 external masters ! Disable control for use of an external arbiter IEEE 1149.1 JTAG port ! Available boundary scan testing Packaging ! 160-pin QFP ! Extended commercial temp range: 0C to 85C Pin differences (160-pin QFP): pin number 62 63 Register differences: Vendor ID Device ID Pericom PI7C8152A 12D8h 8152h Intel 21152 1011h 0024h Pericom PI7C8152A SCAN_EN SCAN_TM_L Intel 21152 NAND_OUT GOZ_L Pericom PI7C8152A Revision 2.2 Revision 1.1 Revision 1.0 yes yes yes yes 128 bytes 256 bytes yes yes no yes yes Intel 21152 Revision 2.2 Revision 1.1 Revision 1.0 yes yes no no 88 bytes 72 bytes yes yes no yes no (0C to 70C) PERICOM SEMICONDUCTOR Page 1 of 3 Revision 1.1 - JUNE 2004 PI7C8152A ENHANCED 2-PORT PCI-to-PCI BRIDGE INTEL 21152 COMPARISON PERFORMANCE COMPARISON: PI7C8152A vs. INTEL 21152 The performance data was measured using an in-house evaluation board slotted into an off-the-shelf motherboard. Fast Ethernet (100Mbit LAN) Cards reside in each of the 4 PCI slots on the secondary bus of the evaluation board. In each comparison, the hardware and software remain constant. The only item changed is the bridge on the evaluation board. Two different sets of hardware were used, and the description of each fixture is listed. In each test setup, a PCI exerciser program is used to generate traffic or write packets from the PCI Fast Ethernet card to memory and then read back from memory to the PCI Fast Ethernet card. TEST CASE 1 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: OS: Tyan S2460 AMD 760DDR AMD Athlon 1.8GHz with 266MHz Front Side Bus 256MB PC2100 DDR ATI Radeon 7000 AGP card No other PCI devices active Windows 2000 A Fast Ethernet card running full duplex is slotted in each of the 4 PCI slots on the evaluation board. Results: Transfer rate measured in Megabits per second Card Number LAN Card 1 LAN Card 2 LAN Card 3 LAN Card 4 PI7C8152A 88 Mb/s 64 Mb/s 91 Mb/s 88 Mb/s Intel 21152 79 Mb/s 23 Mb/s 34 Mb/s 72 Mb/s TEST CASE 2 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: OS: Super Micro X5DL8-GG ServerWorks Grand Champion HE Intel Xeon 2.8GHz with 533/400MHz Front Side Bus 256MB 266DDR SDRAM On-board ATI Rage XL 8MB No other PCI devices active Windows 2000 A Fast Ethernet card running full duplex is slotted in each of the 4 PCI slots on the evaluation board. Results: Transfer rate measured in Megabits per second Card Number LAN Card 1 LAN Card 2 LAN Card 3 LAN Card 4 PI7C8152A 75 Mb/s 93 Mb/s 94 Mb/s 95 Mb/s Intel 21152 31 Mb/s 51 Mb/s 54 Mb/s 60 Mb/s PERICOM SEMICONDUCTOR Page 2 of 3 Revision 1.1 - JUNE 2004 PI7C8152A ENHANCED 2-PORT PCI-to-PCI BRIDGE INTEL 21152 COMPARISON TEST CASE 3 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: OS: ASUS P4G8X Intel E7205 Intel Pentium 4 1.8GHz with 533/400MHz Front Side Bus 256MB PC2100 DDR ATI Rage XL PCI No other PCI devices active Windows 2000 A Fast Ethernet card running full duplex is slotted in each of the 4 PCI slots on the evaluation board. Results: Transfer rate measured in Megabits per second Card Number LAN Card 1 LAN Card 2 LAN Card 3 LAN Card 4 PI7C8152A 16 Mb/s 22 Mb/s 15 Mb/s 21 Mb/s Intel 21152 10 Mb/s 12 Mb/s 10 Mb/s 11 Mb/s TEST CASE 4 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: OS: Super Micro P4QH6 ServerWorks Grand Champion HE Intel Xeon 2.8GHz with 400MHz Front Side Bus 256MB ECC DDR ATI Rage XL No other PCI devices active Windows 2000 A Fast Ethernet card running full duplex is slotted in each of the 4 PCI slots on the evaluation board. Results: Transfer rate measured in Megabits per second Card Number LAN Card 1 LAN Card 2 LAN Card 3 LAN Card 4 PI7C8152A 73 Mb/s 92 Mb/s 93 Mb/s 93 Mb/s Intel 21152 29 Mb/s 47 Mb/s 51 Mb/s 58 Mb/s PERICOM SEMICONDUCTOR Page 3 of 3 Revision 1.1 - JUNE 2004 |
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