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PCI7421 Datasheet(PDF) 169 Page - Texas Instruments

Part # PCI7421
Description  DUAL SINGLE SOCKET CARDBUS AND ILTRAMEDIA CONTROLLER WITH INTEGRATED 1304-A - CONTROLLER WITH DEDICATED FLASH MEDIA SOCKET
PDF  298 Pages
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Manufacturer  TI [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI - Texas Instruments

PCI7421 Datasheet(HTML) 169 Page - Texas Instruments

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7−9
7.12 Subsystem Identification Register
The subsystem identification register is used for system and option card identification purposes. This register can
be initialized from the serial EEPROM or programmed via the subsystem access register at offset F8h in the PCI
configuration space (see Section 7.25). See Table 7−10 for a complete description of the register contents.
Bit
31
30
29
28
27
26
25
24
23
22
21
20
19
18
17
16
Name
Subsystem identification
Type
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
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
Subsystem identification
Type
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
RU
Default
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
0
Register:
Subsystem identification
Offset:
2Ch
Type:
Read/Update
Default:
0000 0000h
Table 7−10. Subsystem Identification Register Description
BIT
FIELD NAME
TYPE
DESCRIPTION
31−16 ‡
OHCI_SSID
RU
Subsystem device ID. This field indicates the subsystem device ID.
15−0 ‡
OHCI_SSVID
RU
Subsystem vendor ID. This field indicates the subsystem vendor ID.
‡ These bits are cleared only by the assertion of GRST.
7.13 Power Management Capabilities Pointer Register
The power management capabilities pointer register provides a pointer into the PCI configuration header where the
power-management register block resides. The PCI7x21/PCI7x11 configuration header doublewords at offsets 44h
and 48h provide the power-management registers. This register is read-only and returns 44h when read.
Bit
7
6
5
4
3
2
1
0
Name
Power management capabilities pointer
Type
R
R
R
R
R
R
R
R
Default
0
1
0
0
0
1
0
0
Register:
Power management capabilities pointer
Offset:
34h
Type:
Read-only
Default:
44h



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