7.1.12
Base Address Register 2-5
The Base Address Registers 2-5 are not used by the 820x, are read only, and will be read
as all zeroes.
7.1.13
Cardbus CIS Pointer Register
Offset
x‘0028’
This optional read-only register is used by devices that contain a CardBus and PCIe
interface. The 820x does not support Cardbus so this register is hard-wired to 0x00000000.
7.1.14
Sub-System Vendor ID Register
The Sub-System Vendor ID register identifies Hifn as the manufacturer of the 820x device.
This value is hard coded in the 820x device.
Offset
x‘002C’
SUBSYS_VENDOR_ID[15:0]
15 14 13 12 11 10
9
8
7
6
5
4
3
2
1
0
Field Name
Description
820x
Bits
Type
Value
SUBSYS_VENDOR_
ID[15:0]
This 16-bit register identifies the
manufacturer of the subsystem. The
value hardwired in this read-only
register is assigned by a central
authority (the PCI SIG) that controls
issuance of the numbers.
15:0
RO
0x13A3
820x – Data Sheet, DS-0157-D
Page212
Hifn Confidential
EXAR [ EXAR CORPORATION ]
