CS5535 datasheet(438/555 Pages) NSC

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Revision 0.8

GPIO Subsystem Register Descriptions (Continued)

5.16.2 GPIO Low/High Bank Feature Bit Registers

5.16.2.1

GPIO Output Value (GPIO[x]_OUT_VAL)

These registers control the output value for the low (GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. If the feature bit

is high, the output value = 1. If the feature bit is low, the output value = 0. The reset value forces all the output values to be

initially set to 0. (These registers use atomic programming, see Section 5.16.1 on page 436 for details.)

If OUT_AUX1 (GPIO I/O Offset 10h/90h) and/or OUT_AUX2 (GPIO I/O Offset 14h/94h) are selected, then their value over-

rides the OUT_VAL settings. See Table 2-8 "GPIO Options" on page 42 for AUX programming details.

GPIO Low Bank Output Value (GPIOL_OUT_VAL)

GPIO High Bank Output Value (GPIOH_OUT_VAL)

5.16.2.2

GPIO Output Enable (GPIO[x]_OUT_EN)

These registers control the output enable for the low (GPIO[15:0]) and high (GPIO[31:16]) banks of GPIOs. If the feature bit

high, the output is enabled. If the feature bit is low, the output is disabled. The reset value forces all the outputs to be dis-

abled. (These registers use atomic programming, see Section 5.16.1 on page 436 for details.)

GPIO Low Bank Output Enable (GPIOL_OUT_EN)

GPIO High Bank Output Enable (GPIOH_OUT_EN)

GPIO I/O Offset

00h

Type

R/W

Reset Value

FFFF0000h

GPIO I/O Offset

80h

Type

R/W

Reset Value

FFFF0000h

GPIOL_OUT_VAL 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_OUT_VAL 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

04h

Type

R/W

Reset Value

FFFF0000h

GPIO I/O Offset

84h

Type

R/W

Reset Value

FFFF0000h

GPIOL_OUT_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_OUT_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

CS5535 Datasheet(PDF) 438 Page - National Semiconductor (TI)

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