SiI0680A PCI to IDE/ATA
Data Sheet
Silicon Image, Inc.
9.1.10 Base Address Register 5
Address Offset: 24H
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
Base Address Register 5
Not Used
This register defines the addressing of various control functions within the SiI 0680A. This register is enabled when input
BA5_EN is set to one. See section 3.1.5 for descriptions. The register bits are defined below.
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Bit [31:08]: Base Address Register 5 (R/W). This register defines the Memory Space base address for all
Silicon Image driver specific functions.
Bit [07:00]: Base Address Register 5 (R). This bit field is not used and is hardwired to 00H.
9.1.11 Subsystem ID – Subsystem Vendor ID
Address Offset: 2CH
Access Type: Read/Write
Reset Value: 0x0680_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. See chapter 8 for details. The register bits are
defined below.
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Bit [31:16]: Subsystem ID (R) – Subsystem ID.
Bit [15:00]: Subsystem Vendor ID (R) – Subsystem Vendor ID.
The value in this bit field is determined by any one of three options:
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1) Bit [31:16]: Subsystem ID (R) – Subsystem ID defaults to 0680AH. Bit [15:00]: Subsystem Vendor
ID (R) – Subsystem Vendor ID defaults to 1095H.
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2) loaded from an external memory device : If an external memory device – FLASH or EEPROM – is
present with the correct signature, the PCI Class Code is loaded from that device after reset. The
correct signature for an EEPROM device is the data pattern 55AAH at addresses [03H:02H] and 55AAH
at addresses [01H:00H]. The correct signature for a FLASH device is the data pattern AA55H at
addresses [7FFFFH:7FFFEH] and 55H at address 7FFFCH. See chapter 8 for details.
3) system programmable : If Bit 0 of the Configuration register (40H) is set, to enables writes, the three
bytes are system programmable.
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© 2006 Silicon Image, Inc.
SiI-DS-0069-C
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SILICONIMAGE [ Silicon image ]
