STMPE2403 datasheet(32/63 Pages) STMICROELECTRONICS

tên linh kiện	STMPE2403

Giải thích chi tiết về linh kiện	24-bit Enhanced port expander with Keypad and PWM controller Xpander logic

PDF	63 Pages

Scroll/Zoom	100%

nhà sản xuất	STMICROELECTRONICS [STMicroelectronics]

Trang chủ	http://www.st.com

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32 / 63 page

GPIO controller

STMPE2403

32/63

GPIO controller

A total of 24 GPIOs are available in the STMPE2403 port expander IC. 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 31. GPIO controller

Address

Description

Auto-Increment

(during sequential R/W)

0xA2

GPMR_msb

GPIO Monitor Pin State Register

Yes

0xA3

GPMR_csb

Yes

0xA4

GPMR_lsb

Yes

0x83

GPSR_msb

GPIO Set Pin State Register

Yes

0x84

GPSR_csb

Yes

0x85

GPSR_lsb

Yes

0x86

GPCR_msb

GPIO Clear Pin State Register

Yes

0x87

GPCR_csb

Yes

0x88

GPCR_lsb

Yes

0x89

GPDR_msb

GPIO Set Pin Direction Register

Yes

0x8A

GPDR_csb

Yes

0x8B

GPDR_lsb

Yes

0x8C

GPEDR_msb

GPIO Edge Detect Status Register

Yes

0x8D

GPEDR_csb

Yes

0x8E

GPEDR_lsb

Yes

0x8F

GPRER_msb

GPIO Rising Edge Register

Yes

0x90

GPRER_csb

Yes

0x91

GPRER_lsb

Yes

0x92

GPFER_msb

GPIO Falling Edge Register

Yes

0x93

GPFER_csb

Yes

0x94

GPFER_lsb

Yes

0x95

GPPUR_msb

GPIO Pull Up Register

Yes

0x96

GPPUR_csb

Yes

0x97

GPPUR_lsb

Yes

0x98

GPPDR_msb

GPIO Pull Down Register

Yes

0x99

GPPDR_csb

Yes

0x9A

GPPDR_lsb

Yes

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