参数资料
型号: PI7C8150BNDE
厂商: Pericom
文件页数: 64/109页
文件大小: 0K
描述: IC PCI-PCI BRIDGE ASYNC 256-PBGA
标准包装: 90
系列: *
应用: *
接口: *
电源电压: *
封装/外壳: 256-BGA
供应商设备封装: 256-PBGA(17x17)
包装: 管件
安装类型: 表面贴装
PI7C8150B
ASYNCHRONOUS 2-PORT PCI-TO-PCI BRIDGE
ADVANCE INFORMATION
Page 58 of 109
April 2009 – Revision 1.08
Primary
Data
Parity Bit
Transaction Type
Direction
Bus Where Error
Was Detected
Primary /
Secondary Parity
Error Response
Bits
0
Delayed Write
Upstream
Secondary
x / x
X = don’t care
Table 6-4 shows setting the data parity detected bit in the status register of secondary
interface. This bit is set under the following conditions:
The PI7C8150B must be a master on the secondary bus.
The parity error response bit must be set in the bridge control register of secondary
interface.
The S_PERR_L signal is detected asserted or a parity error is detected on the
secondary bus.
Table 6-4. Setting Secondary Interface Master Data Parity Error Detected Bit
Secondary
Detected
Parity
Detected Bit
Transaction Type
Direction
Bus Where Error
Was Detected
Primary /
Secondary Parity
Error Response
Bits
0
Read
Downstream
Primary
x / x
1
Read
Downstream
Secondary
x / 1
0
Read
Upstream
Primary
x / x
0
Read
Upstream
Secondary
x / x
0
Posted Write
Downstream
Primary
x / x
1
Posted Write
Downstream
Secondary
x / 1
0
Posted Write
Upstream
Primary
x / x
0
Posted Write
Upstream
Secondary
x / x
0
Delayed Write
Downstream
Primary
x / x
1
Delayed Write
Downstream
Secondary
x / 1
0
Delayed Write
Upstream
Primary
x / x
0
Delayed Write
Upstream
Secondary
x / x
X= don’t care
Table 6-5 shows assertion of P_PERR_L. This signal is set under the following
conditions:
PI7C8150B is either the target of a write transaction or the initiator of a read
transaction on the primary bus.
The parity-error-response bit must be set in the command register of primary interface.
PI7C8150B detects a data parity error on the primary bus or detects S_PERR_L
asserted during the completion phase of a downstream delayed write transaction on the
target (secondary) bus.
Table 6-5. Assertion of P_PERR_L
P_PERR_L
Transaction Type
Direction
Bus Where Error
Was Detected
Primary/
Secondary Parity
Error Response
Bits
1 (de-asserted)
Read
Downstream
Primary
x / x
1
Read
Downstream
Secondary
x / x
0 (asserted)
Read
Upstream
Primary
1 / x
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