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參數(shù)資料
| 型號(hào)： | PI7C8150B-33 |
| 英文描述： | PCI Bridge | Asynchronous 2-Port PCI Bridge |
| 中文描述： | PCI橋|異步2端口PCI橋 |
| 文件頁(yè)數(shù)： | 32/115頁(yè) |
| 文件大?。?/td> | 879K |
| 代理商： | PI7C8150B-33 |
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PI7C8150B
2-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 32 of 115
July 31, 2003 – Revision 1.031
PI7C8150B performs a Type 1 to Type 0 translation when the Type 1 transaction is
generated on the primary bus and is intended for a device attached directly to the secondary
bus. PI7C8150B must convert the configuration command to a Type 0 format so that the
secondary bus device can respond to it. Type 1 to Type 0 translations are performed only in
the downstream direction; that is, PI7C8150B generates a Type 0 transaction only on the
secondary bus, and never on the primary bus.
PI7C8150B responds to a Type 1 configuration transaction and translates it into a Type 0
transaction on the secondary bus when the following conditions are met during the address
phase:
!
The lowest two address bits on P_AD[1:0] are 01b.
!
The bus number in address field P_AD[23:16] is equal to the value in the secondary
bus number register in configuration space.
!
The bus command on P_CBE[3:0] is a configuration read or configuration write
transaction.
When PI7C8150B translates the Type 1 transaction to a Type 0 transaction on the
secondary interface, it performs the following translations to the address:
!
Sets the lowest two address bits on S_AD[1:0].
!
Decodes the device number and drives the bit pattern specified in Table 3-6 on
S_AD[31:16] for the purpose of asserting the device’s IDSEL signal.
!
Sets S_AD[15:11] to 0.
!
Leaves unchanged the function number and register number fields.
PI7C8150B asserts a unique address line based on the device number. These address lines
may be used as secondary bus IDSEL signals. The mapping of the address lines depends on
the device number in the Type 1 address bits P_AD[15:11]. presents the mapping that
PI7C8150B uses.
Table 3-6. Device Number to IDSEL S_AD Pin Mapping
Device Number
0h
1h
2h
3h
4h
5h
6h
7h
8h
9h
Ah
Bh
Ch
Dh
Eh
Fh
10h – 1Eh
P_AD[15:11]
00000
00001
00010
00011
00100
00101
00110
00111
01000
01001
01010
01011
01100
01101
01110
01111
10000 – 11110
Secondary IDSEL S_AD[31:16]
0000 0000 0000 0001
0000 0000 0000 0010
0000 0000 0000 0100
0000 0000 0000 1000
0000 0000 0001 0000
0000 0000 0010 0000
0000 0000 0100 0000
0000 0000 1000 0000
0000 0001 0000 0000
0000 0010 0000 0000
0000 0100 0000 0000
0000 1000 0000 0000
0001 0000 0000 0000
0010 0000 0000 0000
0100 0000 0000 0000
1000 0000 0000 0000
0000 0000 0000 0000
S_AD
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
-
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| PI7C8152B | PCI Bridge | Asynchronous 2-Port PCI Bridge |
| PI7C8154 | PCI Bridge | 2-Port PCI-to-PCI Bridge |
| 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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| PI7C8150BEVB | 功能描述:界面開發(fā)工具 2 Port PCI Bridge Eval Brd RoHS:否 制造商:Bourns 產(chǎn)品:Evaluation Boards 類型:RS-485 工具用于評(píng)估:ADM3485E 接口類型:RS-485 工作電源電壓:3.3 V |
| PI7C8150BMA | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE |
| PI7C8150BMA-33 | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE |
| PI7C8150BMAE | 功能描述:外圍驅(qū)動(dòng)器與原件 - PCI 32-Bit PCI Bridge 2 Port 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 |
| PI7C8150BMAI | 制造商:PERICOM 制造商全稱:Pericom Semiconductor Corporation 功能描述:ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE |
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