CS5535 datasheet(447/555 Pages) NSC

447 / 555 page

Revision 0.8

447

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GPIO Subsystem Register Descriptions (Continued)

5.16.2.15 GPIO Input Positive Edge Enable (GPIO[x]_IN_POSEDGE_EN)

These registers control the enabling of the positive edge detector function for the low (GPIO[15:0]) and high (GPIO[31:16])

banks of GPIOs. The positive edge detector function is enabled if the feature bit is high. The positive edge detector function

is disabled if the feature bit is low. (These registers use atomic programming, see Section 5.16.1 on page 436 for details.)

GPIO Low Bank Input Positive Edge Enable

(GPIOL_IN_POSEDGE_EN)

GPIO High Bank Input Positive Edge Enable

(GPIOH_IN_POSEDGE_EN)

5.16.2.16 GPIO Input Negative Edge Enable (GPIO[x]_IN_NEGEDGE_EN)

These registers control the enabling of the negative edge detector function in the inputs for the low (GPIO[15:0]) and high

(GPIO[31:16]) banks of GPIOs. The negative edge detector function is enabled if the feature bit is high. The negative edge

detector function is disabled if the feature bit is low. (These registers use atomic programming, see Section 5.16.1 on page

436 for details.)

GPIO Low Bank Input Negative Edge Enable

(GPIOL_IN_NEGEDGE_EN)

GPIO High Bank Input Negative Edge Enable

(GPIOH_IN_NEGEDGE_EN)

GPIO I/O Offset

40h

Type

R/W

Reset Value

FFFF0000h

GPIO I/O Offset

C0h

Type

R/W

Reset Value

FFFF0000h

GPIOL_IN_POSEDGE_EN Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

7654321

GPIOH_IN_POSEDGE_EN Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

7654321

GPIO I/O Offset

44h

Type

R/W

Reset Value

FFFF0000h

GPIO I/O Offset

C4h

Type

R/W

Reset Value

FFFF0000h

GPIOL_IN_NEGEDGE_EN Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

7654321

GPIOH_IN_NEGEDGE_EN Register Map

31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10

7654321

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