STMPE2403 datasheet(30/63 Pages) STMICROELECTRONICS

部件名	STMPE2403

功能描述	24-bit Enhanced port expander with Keypad and PWM controller Xpander logic

PDF	63 Pages

Scroll/Zoom	100%

制造商	STMICROELECTRONICS [STMicroelectronics]

网页	http://www.st.com

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30 / 63 page

Interrupt system

STMPE2403

30/63

9.6

Interrupt Status GPIO Register (ISGPIOR)

ISGPIOR register monitors the status of the interruption from a particular GPIO pin interrupt

source to the host. Regardless whether the IEGPIOR bits are enabled or not, the ISGPIOR

bits are still updated. The ISG[23:0] bits are the interrupt status bits correspond to the

GPIO[23:0] pins.

Table 29. ISGPIOR register

Bit

210

ISGPIOR_msb

ISG-23

ISG -22 ISG -21 ISG -20 ISG -19 ISG -18 ISG -17 ISG -16

ISGPIOR _csb

ISG -15 ISG -14 ISG -13 ISG -12 ISG -11 ISG -10

ISG -9

ISG -8

ISGPIOR _lsb

ISG -7

ISG -6

ISG -5

ISG -4

ISG -3

ISG -2

ISG -1

ISG -0

Table 30. Register description

Name

Description

ISG[x]

Interrupt Status GPIO (where x = 23 to 0)

Read:

Interrupt Status of the GPIO[x].

Write:

A write to a ISG[x] bit with a value of ‘1’ will clear the interrupt and a write with a value of

‘0’ has no effect on the ISG[x] bit.

STMPE2403 数据表(PDF) 30 Page - STMicroelectronics

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