SEC1210 datasheet(71/218 Pages) MICROCHIP

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DS00001561C-page 71

SEC1110/SEC1210

FAST_OPEN_DRAIN

R/W

If this bit is set, and the Mode is output, the signal is driven low when

the data is 0. When the data transitions to 1, it is actively driven high

for one system clock cycle before being tri-stated.

OPEN_DRAIN

R/W

If this bit is set, and the Mode is output, the SCx_C4 output is driven

open drain; 0 are driven, 1 are tri-stated.

PULL_UP_EN

R/W

When set, it enables the pull-up to this pin.

PULL_DN_EN

R/W

When set, it enables the pull-down to this pin.

(0X0098)- RESET=0X00)

7:2

Reserved

Always read as 0

FCB_IN

This bit reflects the state of the SCx_C4 pin when select muxes are

set to Smart Card Mode. Synchronous or asynchronous Mode does

not matter.

FCB_OUT

R/W

This bit reflects the state of the SCx_C4 pin when select muxes are

set to Smart synchronous Mode. Synchronous or asynchronous Mode

does not matter.

TABLE 10-10: SMART CARD SYNC SPU CONTROL REGISTER

SC_SYNC_SPU

(0X009D- RESET=0X00)

SMART CARD SPU CONTROL REGISTER

BIT

NAME

R/W

DESCRIPTION

7:6

Reserved

Always read as 0

INPUT_EN

R/W

: Input is enabled

: Input is disabled

OUTPUT_EN

R/W

: Output is enabled

: Output is disabled

FAST_OPEN_DRAIN

R/W

If this bit is set, and the Mode is output, the signal is driven low when

the data is 0. When the data transitions to 1, it is actively driven high

for one system clock cycle before being tri-stated.

OPEN_DRAIN

R/W

If this bit is set, and the Mode is output, the SCx_C8 output is driven

open drain; 0 are driven, 1 are tri-stated.

PULL_UP_EN

R/W

When set, it enables the pull-up to the SCx_C8 pin.

PULL_DN_EN

R/W

When set, it enables the pull-down to the SCx_C8 pin.

(0X009C- RESET=0X00)

7:2

Reserved

Always read as 0

SPU_IN

This bit reflects the state of the SCx_SPU pin when select muxes are

set to Smart Card Mode. Synchronous or asynchronous Mode does

not matter.

SPU_OUT

R/W

This bit reflects the state of the SCx_SPU pin when select muxes are

set to Smart Card Mode. Synchronous or asynchronous Mode does

not matter.

TABLE 10-9:

SMART CARD SYNC FCB CONTROL REGISTER (CONTINUED)

SC_SYNC_FCB

(0X0099)- RESET=0X00)

SMART CARD FCB CONTROL REGISTER

BIT

NAME

R/W

DESCRIPTION

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