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26 smart card configuration 2 register – Texas Instruments Dual/Single Socket CardBus and UntraMedia Controller PCI7621 User Manual

Page 289

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13−17

13.26 Smart Card Configuration 2 Register

BIOS or EEPROM configure system dependent Smart Card interface information through this register. Information
of this register can be read from the Smart Card configuration 2 alias in the Smart Card global control register set.
The software utilizes this information and adjusts the software and firmware behavior, if necessary.

See Table 13−16 for a complete description of the register contents. All bits in this register are reset by GRST only.

Bit

31

30

29

28

27

26

25

24

23

22

21

20

19

18

17

16

Name

Smart Card configuration 2

Type

R

R

R

R

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

Bit

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

0

Name

Smart Card configuration 2

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

Register:

Smart Card Configuration 2

Offset:

54h

Type:

Read-only, Read/Write (EEPROM, GRST only)

Default: 0000 0000h

Table 13−16. Smart Card Configuration 2 Register Description

BIT

SIGNAL

TYPE

FUNCTION

31−16

RSVD

R

Reserved. Bits 31−16 return 0s when read.

15−8

PWRUP_DELAY_

PCMCIA

R

Power up delay for the PCMCIA socket. This register indicates how long the external power switch
takes to apply stable power to the PCMCIA socket in ms. Software must wait before starting
operation after power up. This field has no effect for the hardware.

7−0

RSVD

R

Reserved. Bits 7−0 return 0s when read.