STMPE16M31PX datasheet(32/75 Pages) STMICROELECTRONICS

Il numero della parte	STMPE16M31PX

Spiegazioni elettronici	S-Touch® 16-channel touchkey controller with proximity sensing

PDF	75 Pages

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Produttore elettronici	STMICROELECTRONICS [STMicroelectronics]

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GPIO controller

STMPE16M31PX

32/75

Doc ID 17058 Rev 2

GPIO controller

A total of 16 GPIOs are available in the STMPE16M31PX. Most of the GPIOs are sharing

physical pins with some alternate functions. The GPIO controller contains the registers that

allow the host system to configure each of the pins into either a GPIO, or one of the

alternate functions. Unused GPIOs should be configured as outputs to minimize the power

consumption.

Table 11.

GPIO controller registers

GPIO_DIR

GPIO direction register

Address:

0x10 – 0x11

Type:

Reset:

0x00

Description:

Direction seeting of the GPIO.

LSB (0x10)

MSB (0x11)

Address

Reset value

R/W

Description

0x10

GPDR

0X0000

R/W

GPIO direction register

0x12

GPMR

0X0000

R/W

GPOIO monitor pin state register

0x14

GPSR

0X0000

R/W

GPIO set pin register

0x16

GPFR

0X0000

R/W

GPIO alternate function register

543

210

IO-7

IO-6

IO-5

IO-4

IO-3

IO-2

IO-1

IO-0

000

543

210

IO-15

IO-14

IO-13

IO-12

IO-11

IO-10

IO-9

IO-8

000

[7:0] IO - X

Write ‘1’ to a bit to set the corresponding I/O to output.

Write ‘0’ to a bit to set the corresponding I/O to input.

Obsolete

Product(s)

- Obsolete

Product(s)

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