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參數(shù)資料
| 型號： | 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 |
| 文件頁數(shù)： | 23/115頁 |
| 文件大?。?/td> | 879K |
| 代理商： | PI7C8150B-33 |
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PI7C8150B
2-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 23 of 115
July 31, 2003 – Revision 1.031
!
PI7C8150B neither generates Type 0 configuration transactions on the primary PCI
bus nor responds to Type 0 configuration transactions on the secondary PCI buses.
3.2
SINGLE ADDRESS PHASE
A 32-bit address uses a single address phase. This address is driven on P_AD[31:0], and
the bus command is driven on P_CBE[3:0]. PI7C8150B supports the linear increment
address mode only, which is indicated when the lowest two address bits are equal to zero.
If either of the lowest two address bits is nonzero, PI7C8150B automatically disconnects
the transaction after the first data transfer.
3.3
DEVICE SELECT (DEVSEL_L) GENERATION
PI7C8150B always performs positive address decoding (medium decode) when accepting
transactions on either the primary or secondary buses. PI7C8150B never does subtractive
decode.
3.4
DATA PHASE
The address phase of a PCI transaction is followed by one or more data phases. A data
phase is completed when IRDY_L and either TRDY_L or STOP_L are asserted. A
transfer of data occurs only when both IRDY_L and TRDY_L are asserted during the same
PCI clock cycle. The last data phase of a transaction is indicated when FRAME_L is de-
asserted and both TRDY_L and IRDY_L are asserted, or when IRDY_L and STOP_L are
asserted. See Section 3.8 for further discussion of transaction termination.
Depending on the command type, PI7C8150B can support multiple data phase PCI
transactions. For detailed descriptions of how PI7C8150B imposes disconnect boundaries,
see Section 3.5.4 for write address boundaries and Section 3.6.3 read address boundaries.
3.5
WRITE TRANSACTIONS
Write transactions are treated as either posted write or delayed write transactions. Table
3-2 shows the method of forwarding used for each type of write operation.
Table 3-2. Write Transaction Forwarding
Type of Transaction
Memory Write
Memory Write and Invalidate
Memory Write to VGA memory
I/O Write
Type 1 Configuration Write
Type of Forwarding
Posted (except VGA memory)
Posted
Delayed
Delayed
Delayed
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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