STMPE1801 datasheet(30/60 Pages) STMICROELECTRONICS

No. de pieza	STMPE1801

Descripción Electrónicos	Xpander Logic™ 18-bit enhanced port expander with keypad controller

PDF	60 Pages

Scroll/Zoom	100%

Fabricante Electrónico	STMICROELECTRONICS [STMicroelectronics]

Página de inicio	http://www.st.com

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30 / 60 page

Interrupt system

STMPE1801

30/60

Doc ID 17884 Rev 3

NT_STA_GPIO

Interrupt status GPIO register

Address:

0D, 0E, 0F

Type:

Reset:

0x00

Description:

The interrupt status GPIO register monitors the status of the interruption from a

particular GPIO pin interrupt source to the host. The INT_STA_GPIO bits are

constantly updated regardless whether the INT_EN_GPIO_MASK bits are enabled or

not. The ISG[17:0] bits are the interrupt status bits correspond to the GPIO[17:0] pins.

INT_STA_GPIO_LOW

ISG7

ISG6

ISG5

ISG4

ISG3

ISG2

ISG1

ISG0

INT_STA_GPIO_MID

ISG15

ISG14

ISG13

ISG12

ISG11

ISG10

ISG9

ISG8

INT_STA_GPIO_HIGH

Reserved

ISG17

ISG16

[17:0 ISG[x]

Interrupt status GPIO (where x = 17 to 0)

ISG[x] will be set to ‘1’ if an interrupt is detected on the corresponding GPIO pin.

Reading the INT_STA_GPIO register clears all interrupt status GPIO bits to ‘0’ which had been

set to ‘1’ prior to the read event.

STMPE1801 Datasheet(PDF) 30 Page - STMicroelectronics

STMPE1801 Datasheet(HTML) 30 Page - STMicroelectronics

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