PC87366 datasheet(136/240 Pages) NSC

136 / 240 page

6.0 General-Purpose Input/Output (GPIO) Port (Continued)

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6.4.4

GPIO Data Out Register (GPDO)

Location:

Device specific

Type:

R/W

6.4.5

GPIO Data In Register (GPDI)

Location:

Device specific

Type:

Bit

76543210

Name

Data Out

Reset

11111111

Bit

Description

Data Out. Bits 7-0 correspond to pins 7-0 respectively. The value of each bit determines the value driven on the

corresponding GPIO pin when its output buffer is enabled. Writing to the bit latches the written data unless the

bit is locked by the GPCFG register Lock bit. Reading the bit returns its value, regardless of the pin value and

conﬁguration.

0: Corresponding pin driven to low when output enabled

1: Corresponding pin driven or released to high (according to buffer type and static pull-up selection) when

output enabled

Bit

76543210

Name

Data In

Reset

XXXXXXXX

Bit

Description

Data In. Bits 7-0 correspond to pins 7-0 respectively. Reading each bit returns the value of the corresponding

GPIO pin, regardless of the pin conﬁguration and the GPDO register value. Write is ignored.

0: Corresponding pin level low

1: Corresponding pin level high

PC87366 数据表(PDF) 136 Page - National Semiconductor (TI)

PC87366 数据表(HTML) 136 Page - National Semiconductor (TI)

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