PI7C8154B
2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE
PLX PCI6154 COMPARISON
PERICOM SEMICONDUCTOR
Revision 1.0 JULY 2004
Page 1 of 3
FEATURE COMPARISON: PI7C8154B vs. PLX PCI6154B
Features:
Feature
Pericom PI7C8154B
PLX PCI6154
Interfaces
!
Complies with the following specifications:
PCI Local Bus Specification
!
3.3V and 5V signaling environments
!
Concurrent primary and secondary bus operations
Revision 2.2
yes
yes
Revision 2.3
no (3.3V w/5V
tolerance)
yes
Memory Buffer Architecture
!
Dynamic Prefetching Control
!
Upstream posted write buffer
!
Downstream posted write buffer
!
Upstream read data buffer
!
Downstream read data buffer
yes
512 bytes
512 bytes
1024 bytes
1024 bytes
no
256 bytes
256 bytes
256 bytes
256 bytes
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
yes
yes
yes
yes
IEEE 1149.1 JTAG port
!
Available boundary scan testing
yes
yes
Compact PCI Hot Swap
!
Hot Swap Friendly Support
no
no
Other Features
!
Serial EEPROM support
!
80MHz operation on secondary bus
!
Asynchronous mode operation support
yes
yes
yes
yes
no
yes
Packaging
!
304-pin PBGA
!
Extended commercial temp range: 0°C to 85°C
yes
yes
yes
no (0°C to 70°C)
Pin differences (304-pin PBGA):
pin number
Pericom PI7C8154B
PLX PCI6154
D11 PMEENA#
VDD
Register differences:
Pericom PI7C8154B
PLX PCI6154
Vendor ID
12D8h
3388h
Device ID
8154h
0020h
PI7C8154B
2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE
PLX PCI6154 COMPARISON
PERICOM SEMICONDUCTOR
Revision 1.0 JULY 2004
Page 2 of 3
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
Card Number
Pericom PI7C8154B
PLX PCI6154
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
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
Pericom PI7C8154B
PLX PCI6154
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
PI7C8154B
2-PORT, 64-bit/66MHz PCI-to-PCI BRIDGE
PLX PCI6154 COMPARISON
PERICOM SEMICONDUCTOR
Revision 1.0 JULY 2004
Page 3 of 3
TEST CASE 3
Motherboard:
Super Micro P4DPE-G2
Chipset:
Intel
E7500
Processor:
Intel Xeon 1.8GHz with 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
Pericom PI7C8154B
PLX PCI6154
LAN Card 1
99 Mb/s
96 Mb/s
LAN Card 2
99 Mb/s
50 Mb/s
LAN Card 3
99 Mb/s
98 Mb/s
LAN Card 4
99 Mb/s
56Mb/s
TEST CASE 4
Motherboard:
ASUS
P4G8X
Chipset:
Intel
E7205
Processor:
Intel Pentium 4 1.8GHz with 533/400MHz Front Side Bus
Memory: 256MB
PC2100
DDR
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
Card Number
PI7C8154B
PLX PCI6154
LAN Card 1
97 Mb/s
80 Mb/s
LAN Card 2
90 Mb/s
58 Mb/s
LAN Card 3
98 Mb/s
89 Mb/s
LAN Card 4
98 Mb/s
83 Mb/s
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