CS5535 datasheet(455/555 Pages) NSC

455 / 555 page

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455

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GPIO Subsystem Register Descriptions (Continued)

5.16.3.2

GPIO Filter Count (GPIO_FILTER[x]_COUNT)

Writing to these 16-bit registers programs the counter value. Reads provide current counter value.

GPIO Filter 0 Count (GPIO_FLTR0_CNT)

GPIO Filter 1 Count (GPIO_FLTR1_CNT)

GPIO Filter 2 Count (GPIO_FLTR2_CNT)

GPIO Filter 3 Count (GPIO_FLTR3_CNT)

GPIO Filter 4 Count (GPIO_FLTR4_CNT)

GPIO Filter 5 Count (GPIO_FLTR5_CNT)

GPIO Filter 6 Count (GPIO_FLTR6_CNT)

GPIO Filter 7 Count (GPIO_FLTR7_CNT)

GPIO I/O Offset

52h

Type

R/W

Reset Value

0000h

GPIO I/O Offset

5Ah

Type

R/W

Reset Value

0000h

GPIO I/O Offset

62h

Type

R/W

Reset Value

0000h

GPIO I/O Offset

6Ah

Type

R/W

Reset Value

0000h

GPIO I/O Offset

72h

Type

R/W

Reset Value

0000h

GPIO I/O Offset

7Ah

Type

R/W

Reset Value

0000h

GPIO I/O Offset

D2h

Type

R/W

Reset Value

0000h

GPIO I/O Offset

DAh

Type

R/W

Reset Value

0000h

GPIO_FLTR[x]_CNT Register Map

987

6543

210

FILTER_COUNT

GPIO_FLTR[x]_CNT Bit Descriptions

Bit

Name

Description

15:0

FILTER_COUNT

Filter Count. An initial count is loaded into the FILTER_COUNT via the

FILTER_AMOUNT register.

Direct access to the counter’s state is provided via the

FILTER_COUNT register and may be read at any time to determine the current value

of the counter. The FILTER_COUNT register may also be written to at any time,

thereby jamming the counter state forward or backward from the current count.

CS5535 Datasheet(PDF) 455 Page - National Semiconductor (TI)

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