PCI1221 datasheet(58/123 Pages) TI

58 / 123 page

PCI1221 GHK/PDV

PC CARD CONTROLLERS

SCPS042 – JULY 1998

POST OFFICE BOX 655303

• DALLAS, TEXAS 75265

subsystem vendor ID register

Bit

Name

Subsystem vendor ID

Type

Default

Subsystem vendor ID

Type:

Read only (read/write when bit 5 in the system control register is 0)

Offset:

40h (functions 0, 1)

Default:

0000h

Description: The subsystem vendor ID register is used for system and option-card identification purposes

and may be required for certain operating systems. This register is read only or read/write,

depending on the setting of bit 5 (SUBSYSRW) in the system control register. When bit 5 is 0,

this register is read/write; when bit 5 is 1, this register is read only. The default mode is

read only.

subsystem ID register

Bit

Name

Subsystem ID

Type

Default

Subsystem ID

Type:

Read only (read/write when bit 5 in the system control register is 0)

Offset:

42h (functions 0, 1)

Default:

0000h

Description: The subsystem ID register is used for system and option-card identification purposes and may

be required for certain operating systems. This register is read only or read/write, depending

on the setting of bit 5 (SUBSYSRW) in the system control register. When bit 5 is 0, this register

is read/write; when bit 5 is 1, this register is read only. The default mode is read only.

PCI1221 Datasheet(PDF) 58 Page - Texas Instruments