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| PI7C8154B 2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE PLX PCI6154 COMPARISON FEATURE COMPARISON: PI7C8154B vs. PLX PCI6154B Features: Feature Interfaces ! Complies with the following specifications: PCI Local Bus Specification ! 3.3V and 5V signaling environments ! Concurrent primary and secondary bus operations Memory Buffer Architecture ! Dynamic Prefetching Control ! Upstream posted write buffer ! Downstream posted write buffer ! Upstream read data buffer ! Downstream read data buffer Bus Arbitration ! Programmable internal arbiter for the secondary bus with support for up to 9 external masters ! Disable control for use of an external arbiter IEEE 1149.1 JTAG port ! Available boundary scan testing Compact PCI Hot Swap ! Hot Swap Friendly Support Other Features ! Serial EEPROM support ! 80MHz operation on secondary bus ! Asynchronous mode operation support Packaging ! 304-pin PBGA ! Extended commercial temp range: 0C to 85C Pin differences (304-pin PBGA): pin number D11 Register differences: Vendor ID Device ID Pericom PI7C8154B 12D8h 8154h PLX PCI6154 3388h 0020h Pericom PI7C8154B PMEENA# PLX PCI6154 VDD Pericom PI7C8154B Revision 2.2 yes yes yes 512 bytes 512 bytes 1024 bytes 1024 bytes yes yes yes no yes yes yes yes yes PLX PCI6154 Revision 2.3 no (3.3V w/5V tolerance) yes no 256 bytes 256 bytes 256 bytes 256 bytes yes yes yes no yes no yes yes no (0C to 70C) PERICOM SEMICONDUCTOR Page 1 of 3 Revision 1.0 - JULY 2004 PI7C8154B 2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE PLX PCI6154 COMPARISON PERFORMANCE COMPARISON: PI7C8154B vs. PLX PCI6154 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: Tyan S2460 AMD-760 MP AMD Athlon 1.8GHz 512MB PC266 DDR SDRAM Radeon 7000 AGP Video NA 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 Pericom PI7C8154B 99 Mb/s 99 Mb/s 99 Mb/s 99 Mb/s PLX PCI6154 70 Mb/s 28 Mb/s 77 Mb/s 76 Mb/s TEST CASE 2 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: Tyan S2721 Intel E7501 Intel Xeon 1.8GHz with 533/400MHz Front Side Bus 512MB PC266 DDR SDRAM Integrated ATI Rage XL Graphics Controller NA 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 Pericom PI7C8154B 28 Mb/s 49 Mb/s 48 Mb/s 46 Mb/s PLX PCI6154 37 Mb/s 33 Mb/s 32 Mb/s 15 Mb/s PERICOM SEMICONDUCTOR Page 2 of 3 Revision 1.0 - JULY 2004 PI7C8154B 2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE PLX PCI6154 COMPARISON TEST CASE 3 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: Super Micro P4DPE-G2 Intel E7500 Intel Xeon 1.8GHz with 400MHz Front Side Bus 512MB PC266 DDR SDRAM Integrated ATI Rage XL Graphics Controller NA 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 Pericom PI7C8154B 99 Mb/s 99 Mb/s 99 Mb/s 99 Mb/s PLX PCI6154 96 Mb/s 50 Mb/s 98 Mb/s 56Mb/s TEST CASE 4 Motherboard: Chipset: Processor: Memory: Video: Other PCI Devices: ASUS P4G8X Intel E7205 Intel Pentium 4 1.8GHz with 533/400MHz Front Side Bus 256MB PC2100 DDR Radeon 7000 AGP Video NA 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 PI7C8154B 97 Mb/s 90 Mb/s 98 Mb/s 98 Mb/s PLX PCI6154 80 Mb/s 58 Mb/s 89 Mb/s 83 Mb/s PERICOM SEMICONDUCTOR Page 3 of 3 Revision 1.0 - JULY 2004 |
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