參數(shù)資料
型號： SII3124ACBHU
元件分類： 總線控制器
英文描述： PCI BUS CONTROLLER, PBGA364
封裝： 21 X 21 MM, 1 MM PITCH, GREEN, BGA-364
文件頁數(shù)： 51/88頁
文件大小： 592K
代理商： SII3124ACBHU
PCI-X to Serial ATA Controller
Data Sheet
Silicon Image, Inc.
2006 Silicon Image, Inc.
SiI-DS-0160-C
55
7.1.8
Subsystem ID – Subsystem Vendor ID
Address Offset: 2CH
Access Type: Read/Write
Reset Value: 0x3124_1095
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Subsystem ID
Subsystem Vendor ID
This register defines the Subsystem ID fields associated with the PCI bus. The register bits are defined below.
Bit [31:16]
: Subsystem ID (R) – Subsystem ID.
The value in this bit field is one of the following three:
the default value of 0x3124
the value loaded from an external memory device; if an external memory device – Flash or EEPROM – is
present with the correct signature, the Subsystem ID is loaded from that device after reset. See section 6 on
page 44.
system programmed value; if bit 0 of the Configuration register (48H) is set the Subsystem ID is system
programmable.
Bit [15:00]
: Subsystem Vendor ID (R) – Subsystem Vendor ID.
The value in this bit field is one of the following three:
the default value of 0x1095
the value loaded from an external memory device; if an external memory device – Flash or EEPROM – is
present with the correct signature, the Subsystem Vendor ID is loaded from that device after reset. See
section 6 on page 44.
system programmed value; if bit 0 of the Configuration register (48H) is set the Subsystem Vendor ID is
system programmable.
7.1.9
Expansion ROM Base Address
Address Offset: 30H
Access Type: Read/Write
Reset Value: 0x0000_0000
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 09 08 07 06 05 04 03 02 01 00
Expansion ROM Base Address
000_0000_0000_0000_000
Exp
R
O
M
Enabl
e
This register defines the Expansion ROM base address associated with the PCI bus. The register bits are defined below.
Bit [31:19]
: Expansion ROM Base Address (R/W) – Expansion ROM Base Address. This bit field defines the
upper bits of the Expansion ROM base address.
Bit [18:01]
: (R). This bit field is hardwired to 00000H to indicate that the Expansion ROM address range is 512K
bytes.
Bit [00]
: Exp ROM Enable (R/W) – Expansion ROM Enable. This bit is set to enable Expansion ROM access.
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