Revision 5.03 – June 14, 2006
S5320 – PCI Match Maker: PCI Configuration Registers
Data Sheet
Device Identification Register (DID)
This register is reserved for the manufacturer’s device
identification number (DID). DID numbers are main-
tained and issued by the registered owner of the VID
number programmed into a PCI device. AMCC will
issue a DID number to manufacturers using the AMCC
VID. This maintains PCI device uniqueness among all
manufacturers. to be in compliance. This register
defaults to AMCC's DID during power-on initialization.
The default value can be changed to another valid DID
when an external nonvolatile device is used for boot
loading.
Device Identification
Register Name:
Address Offset:
Power-up value:
Boot-load:
02h-03h
5920h
External nvRAM offset 042h-43h
Read Only
16 bits
Attribute:
Size:
Figure 7. Device Identification Register
15
0
5920h
DeviceIdentificationRegister
(RO)
Bit
Description
Device Identification Number: AMCC’s temporary end user value 5920h
15.0
30
DS1656
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