Revision 1.02 – April 12, 2007
S5920 – PCI Product: PCI Configuration Registers
Data Book
This register is used to uniquely identify the user board
or subsystem. It provides a mechanism for add-in card
vendors to distinguish devices with the same Vendor
ID and Device ID. Implementation of this register is
mandatory for 2.2 compliance and an all-zero value
indicates that the device does not support subsystem
identification. Subsystem Vendor IDs may be obtained
directly from the PCI SIG by the user and it is loaded
by the S5920 from the external nvRAM at power up.
SUBSYSTEM VENDOR IDENTIFICATION
REGISTER (SVID)
Subsystem Vendor ID
2Ch-2Dh
Register Name:
Address Offset:
Power-up value:
Boot-load:
0000h
External nvRAM offset 6Ch-6Dh
Read Only (RO)
16 bits
Attribute:
Size:
Figure 19. Subsystem Vendor Identification Register
15
0
0000h
Subsystem Vendor Identification Register (RO)
Bit
Description
15:0
Subsystem Vendor Identification Number.
AMCC Confidential and Proprietary
DS1596
63
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
