參數(shù)資料
型號: PI7C8150AMAE
廠商: Pericom
文件頁數(shù): 88/111頁
文件大小: 0K
描述: IC PCI-PCI BRIDGE 2PORT 208-FQFP
標(biāo)準包裝: 24
系列: *
應(yīng)用: *
接口: *
電源電壓: *
封裝/外殼: 208-BFQFP
供應(yīng)商設(shè)備封裝: 208-FQFP(28x28)
包裝: 管件
安裝類型: 表面貼裝
PI7C8150A
2-PORT PCI-TO-PCI BRIDGE
Page 78 of 111
APRIL 2006 – Revision 1.1
14.1.1
VENDOR ID REGISTER – OFFSET 00h
Bit
Function
Type
Description
15:0
Vendor ID
R/O
Identifies Pericom as vendor of this device. Hardwired as 12D8h.
14.1.2
DEVICE ID REGISTER – OFFSET 00h
Bit
Function
Type
Description
31:16
Device ID
R/O
Identifies this device as the PI7C8150A. Hardwired as 8150h.
14.1.3
COMMAND REGISTER – OFFSET 04h
Bit
Function
Type
Description
0
I/O Space Enable
R/W
Controls response to I/O access on the primary interface
0: ignore I/O transactions on the primary interface
1: enable response to I/O transactions on the primary interface
Reset to 0
1
Memory Space
Enable
R/W
Controls response to memory accesses on the primary interface
0: ignore memory transactions on the primary interface
1: enable response to memory transactions on the primary interface
Reset to 0
2
Bus Master
Enable
R/W
Controls ability to operate as a bus master on the primary interface
0: do not initiate memory or I/O transactions on the primary
interface and disable response to memory and I/O transactions on
the secondary interface
1: enables PI7C8150A to operate as a master on the primary
interfaces for memory and I/O transactions forwarded from the
secondary interface
Reset to 0
3
Special Cycle
Enable
R/O
No special cycles defined.
Bit is defined as read only and returns 0 when read
4
Memory Write
And Invalidate
Enable
R/O
Memory write and invalidate not supported.
Bit is implemented as read only and returns 0 when read (unless
forwarding a transaction for another master)
5
VGA Palette
Snoop Enable
R/W
Controls response to VGA compatible palette accesses
0: ignore VGA palette accesses on the primary
1: enable positive decoding response to VGA palette writes on the
primary interface with I/O address bits AD[9:0] equal to 3C6h,
3C8h, and 3C9h (inclusive of ISA alias; AD[15:10] are not decoded
and may be any value)
06-0057
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