beautypg.com

1 pci configuration registers, 2 vendor id register – Texas Instruments TSB12LV26 User Manual

Page 23

background image

3–3

3.1

PCI Configuration Registers

The TSB12LV26 is a single-function PCI device. The configuration header is compliant with the

PCI Local Bus

Specification as a standard header. Table 3–2 illustrates the PCI configuration header that includes both the
predefined portion of the configuration space and the user definable registers.

Table 3–2. PCI Configuration Register Map

REGISTER NAME

OFFSET

Device ID

Vendor ID

00h

Status

Command

04h

Class code

Revision ID

08h

BIST

Header type

Latency timer

Cache line size

0Ch

OHCI registers base address

10h

TI extension registers base address

14h

Reserved

18h

Reserved

1Ch

Reserved

20h

Reserved

24h

Reserved

28h

Subsystem ID

Subsystem vendor ID

2Ch

Reserved

30h

Reserved

PCI power

management

capabilities pointer

34h

Reserved

38h

Maximum latency

Minimum grant

Interrupt pin

Interrupt line

3Ch

PCI OHCI control register

40h

Power management capabilities

Next item pointer

Capability ID

44h

PM data

PMCSR_BSE

Power management CSR

48h

Reserved

4Ch–ECh

PCI miscellaneous configuration register

F0h

Link_Enhancements register

F4h

Subsystem ID alias

Subsystem vendor ID alias

F8h

GPIO3

GPIO2

Reserved

FCh

3.2

Vendor ID Register

The vendor ID register contains a value allocated by the PCI SIG and identifies the manufacturer of the PCI device.
The vendor ID assigned to Texas Instruments is 104Ch.

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

Vendor ID

Type

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

R

Default

0

0

0

1

0

0

0

0

0

1

0

0

1

1

0

0

Register:

Vendor ID

Type:

Read-only

Offset:

00h

Default:

104Ch