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: 0°C to 85°C
Pin differences (304-pin PBGA):
pin number
D11 PMEENA# VDD
Register differences:
Vendor ID 12D8h 3388h
Device ID 8154h 0020h
Pericom PI7C8154B PLX PCI6154
Pericom PI7C8154B PLX PCI6154
Pericom PI7C8154B PLX PCI6154
Revision 2.2
yes
yes
yes
512 bytes
512 bytes
1024 bytes
1024 bytes
yes
yes
yes
no
yes
yes
yes
yes
yes
PI7C8154B
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 (0°C to 70°C)
PERICOM SEMICONDUCTOR Revision 1.0 – JULY 2004
Page 1 of 3
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: Tyan S2460
Chipset: AMD-760 MP
Processor: AMD Athlon 1.8GHz
Memory: 512MB PC266 DDR SDRAM
Video: Radeon 7000 AGP Video
Other PCI Devices: 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
TEST CASE 2
Motherboard: Tyan S2721
Chipset: Intel E7501
Processor: Intel Xeon 1.8GHz with 533/400MHz Front Side Bus
Memory: 512MB PC266 DDR SDRAM
Video: Integrated ATI Rage XL Graphics Controller
Other PCI Devices: 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 99 Mb/s 70 Mb/s
LAN Card 2 99 Mb/s 28 Mb/s
LAN Card 3 99 Mb/s 77 Mb/s
LAN Card 4 99 Mb/s 76 Mb/s
Card Number
LAN Card 1 28 Mb/s 37 Mb/s
LAN Card 2 49 Mb/s 33 Mb/s
LAN Card 3 48 Mb/s 32 Mb/s
LAN Card 4 46 Mb/s 15 Mb/s
Pericom PI7C8154B PLX PCI6154
Pericom PI7C8154B PLX PCI6154
PERICOM SEMICONDUCTOR Revision 1.0 – JULY 2004
Page 2 of 3
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