參數(shù)資料
型號(hào)： PI7C8154
英文描述： PCI Bridge | 2-Port PCI-to-PCI Bridge
中文描述： PCI橋| 2端口PCI至PCI橋
文件頁數(shù)： 22/115頁
文件大?。?/td> 879K
代理商： PI7C8154
PI7C8150B
2-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 22 of 115
July 31, 2003 – Revision 1.031
3
PCI BUS OPERATION
This Chapter offers information about PCI transactions, transaction forwarding across
PI7C8150B, and transaction termination. The PI7C8150B has two 128-byte FIFO’s for
buffering of upstream and downstream transactions. These hold addresses, data,
commands, and byte enables that are used for write transactions. The PI7C8150B also has
an additional four 128-byte FIFO’s that hold addresses, data, commands, and byte enables
for read transactions.
3.1
TYPES OF TRANSACTIONS
This section provides a summary of PCI transactions performed by PI7C8150B.
Table 3-1 lists the command code and name of each PCI transaction. The Master and
Target columns indicate support for each transaction when PI7C8150B initiates
transactions as a master, on the primary (P) and secondary (S) buses, and when PI7C8150B
responds to transactions as a target, on the primary (P) and secondary (S) buses.
Table 3-1. PCI Transactions
Types of Transactions
0000
Interrupt Acknowledge
0001
Special Cycle
0010
I/O Read
0011
I/O Write
0100
Reserved
0101
Reserved
0110
Memory Read
0111
Memory Write
1000
Reserved
1001
Reserved
1010
Configuration Read
1011
Configuration Write
1100
Memory Read Multiple
1101
Dual Address Cycle
1110
Memory Read Line
1111
Memory Write and Invalidate
Initiates as Master
Primary
N
Y
Y
Y
N
N
Y
Y
N
N
N
Y (Type 1 only)
Y
Y
Y
Y
Responds as Target
Primary
N
N
Y
Y
N
N
Y
Y
N
N
Y
Y
Y
Y
Y
Y
Secondary
N
Y
Y
Y
N
N
Y
Y
N
N
Y
Y
Y
Y
Y
Y
Secondary
N
N
Y
Y
N
N
Y
Y
N
N
N
Y (Type 1 only)
Y
Y
Y
Y
As indicated in Table 3-1, the following PCI commands are not supported by
PI7C8150B:
!
PI7C8150B never initiates a PCI transaction with a reserved command code and, as a
target, PI7C8150B ignores reserved command codes.
!
PI7C8150B does not generate interrupt acknowledge transactions. PI7C8150B
ignores interrupt acknowledge transactions as a target.
!
PI7C8150B does not respond to special cycle transactions. PI7C8150B cannot
guarantee delivery of a special cycle transaction to downstream buses because of the
broadcast nature of the special cycle command and the inability to control the
transaction as a target. To generate special cycle transactions on other PCI buses,
either upstream or downstream, Type 1 configuration write must be used.
相關(guān)PDF資料
PDF描述
PI7C8154-33 PCI Bridge | 2-Port PCI-to-PCI Bridge
PI7C8150 PCI Bridge | 2-Port PCI-to-PCI Bridge
PI7C8150-33 PCI Bridge | 2-Port PCI-to-PCI Bridge
PI7C8150A PCI Bridge | 2-Port PCI-to-PCI Bridge
PI7C8150A-33 PCI Bridge | 2-Port PCI-to-PCI Bridge
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
PI7C8154-33 制造商:未知廠家 制造商全稱:未知廠家 功能描述:PCI Bridge | 2-Port PCI-to-PCI Bridge
PI7C8154ANA 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 64-Bit/66MHz 2-Port PCI Bridge RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
PI7C8154ANAE 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 64B/66MHz 2 Port PCI Bridge RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
PI7C8154ANAE-33 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 64B/66MHz 2 Port PCI Bridge RoHS:否 制造商:PLX Technology 工作電源電壓: 最大工作溫度: 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:FCBGA-1156 封裝:Tray
PI7C8154B 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:2 PORT 64 BIT 66MHZ PCI TO PCI BRIDGE
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