9 smart card base address register 1−4, 10 subsystem vendor identification register – Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual
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13.9 Smart Card Base Address Register 1−4
Each socket has its own base address register. For example, a device supports three Smart Card sockets uses three
base address registers, BA1 (socket 0), BA2 (socket 1) and BA3 (socket 2).
These registers are used by this function to determine where to forward a memory transaction to the Smart Card
Control and Communication Register sets. Bits 31−12 of this register are read/write and allow the base address to
be located anywhere in the 32-bit PCI memory space on 4-Kbyte boundaries and the window size is always 4K bytes.
Bits 11−4 are read-only and always return 0s. Write transactions to these bits have no effect. Bit 3 (0b) specifies that
these windows are nonprefetchable. Bits 2−1 (00b) specify that this memory window can allocate anywhere in the
32-bit address space.
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
Smart Card base address register 1−4
Type
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
RW
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Smart Card base address register 1−4
Type
RW
RW
RW
RW
R
R
R
R
R
R
R
R
R
R
R
R
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Smart Card base address register 1−4
Offset:
14h, 18h, 1Ch, and 20h
Type:
Read/Write, Read-only
Default:
0000 0000h
13.10 Subsystem Vendor Identification Register
This register is read-update and can be modified through the subsystem vendor ID alias register. Default value is
104Ch. This default value complies with the WLP (Windows Logo Program) requirements without BIOS or EEPROM
configuration. All bits in this register are reset by GRST only.
Bit
15
14
13
12
11
10
9
8
7
6
5
4
3
2
1
0
Name
Subsystem vendor identification
Type
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
Default
0
0
0
1
0
0
0
0
0
1
0
0
1
1
0
0
Register:
Subsystem vendor identification
Offset:
2Ch
Type:
Read/Update
Default:
104Ch