Revision 1.02 – June 27, 2006
S5935 – PCI Product
Data Book
The DID register contains the vendor-assigned device
identification number. This number is generated by
AMCC in compliance with the conditions of the PCI
specification. Write operations from the PCI interface
have no effect on this register. After reset is removed,
this field can be boot-loaded from the external non-vol-
atile device (if present and valid) so that other
legitimate PCI SIG members can substitute their own
device identification number for this field.
DEVICE IDENTIFICATION REGISTER (DID)
Device Identification
Register Name
02h-03h
Address Offset
4750h (ASCII hex for ‘GP’, General
Purpose)
Power-up value
External nvRAM offset 042h-43h
Boot-load
Read Only
Attribute
16 bits
Size
Figure 9. Device Identification Register
0
15
4750h
Device Identification Register (RO)
Table 6. Device Identification Register
Bit
Description
15:0
Device Identification Number: This is a 16-bit value initially assigned by AMCC for applications
using the AMCC Vendor ID.
AMCC Confidential and Proprietary
DS1527
35
AMCC [ APPLIED MICRO CIRCUITS CORPORATION ]
