参数资料
型号: PI7C8150BNDE
厂商: Pericom
文件页数: 86/109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 78 of 109
April 2009 – Revision 1.08
Bit
Function
Type
Description
7
Wait Cycle
Control
R/O
Controls the ability to perform address / data stepping
0: disable address/data stepping (affects primary and secondary)
1: enable address/data stepping (affects primary and secondary)
Reset to 0
8
P_SERR_L
enable
R/W
Controls the enable for the P_SERR_L pin
0: disable the P_SERR_L driver
1: enable the P_SERR_L driver
Reset to 0
9
Fast Back-to-
Back Enable
R/W
Controls 7C8150’s ability to generate fast back-to-back transactions
to different devices on the primary interface.
0: no fast back-to-back transactions
1: enable fast back-to-back transactions
Reset to 0
15:10
Reserved
R/O
Returns 000000 when read
14.1.4
STATUS REGISTER – OFFSET 04h
Bit
Function
Type
Description
19:16
Reserved
R/O
Reset to 0
20
Capabilities List
R/O
Set to 1 to enable support for the capability list (offset 34h is the
pointer to the data structure)
Reset to 1
21
66MHz Capable
R/O
Set to 1 to enable 66MHz operation on the primary interface
Reset to 1
22
Reserved
R/O
Reset to 0
23
Fast Back-to-
Back Capable
R/O
Set to 1 to enable decoding of fast back-to-back transactions on the
primary interface to different targets
Reset to 1
24
Data Parity Error
Detected
R/WC
Set to 1 when P_PERR_L is asserted and bit 6 of command register
is set
Reset to 0
26:25
DEVSEL_L
timing
R/O
DEVSEL_L timing (medium decoding)
00: fast DEVSEL_L decoding
01: medium DEVSEL_L decoding
10: slow DEVSEL_L decoding
11: reserved
Reset to 01
27
Signaled Target
Abort
R/WC
Set to 1 (by a target device) whenever a target abort cycle occurs
Reset to 0
28
Received Target
Abort
R/WC
Set to 1 (by a master device) whenever transactions are terminated
with target aborts
Reset to 0
29
Received Master
Abort
R/WC
Set to 1 (by a master) when transactions are terminated with Master
Abort
Reset to 0
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