S5920Q Applied Micro Circuits Corporation, S5920Q Datasheet - Page 64

• Manufacturer Part Number: S5920Q
• Manufacturer: Applied Micro Circuits Corporation

Specifications of S5920Q

• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Operating Temperature (max): 70C
• Package Type: PQFP
• Rad Hardened: No
• Lead Free Status / Rohs Status: Not Compliant

S5920 – PCI Product: PCI Configuration Registers
SUBSYSTEM ID REGISTER (SID)
Figure 20. Subsystem Identification Register
AMCC Confidential and Proprietary
Register Name:
Address Offset:
Power-up value:
Boot-load:
Attribute:
Size:
15:0
Bit
15
Subsystem Identification Number.
Subsystem Identification
2Eh-2Fh
0000h
External nvRAM offset 6Eh-6Fh
Read Only (RO)
16 bit
0000h
Description
This register is used to further identify the add-in 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 ID is vendor-specific. It is
loaded by the S5920 from the external nvRAM at
power up.
Subsystem Identification Register (RO)
Revision 1.02 – April 12, 2007
Data Book
DS1596
0
64