STMPE821_09 datasheet(20/55 Pages) STMICROELECTRONICS

Part #	STMPE821

Description	8-channel capacitive touch key controller

PDF	55 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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Interrupt controller module

STMPE821

20/55

INT_CTRL

Interrupt control register

Address:

0x08

Type:

R/W

Reset:

0x00

Description:

This register is used to enable control the polarity, edge/level and enabling of the

interrupt system.device

654

3210

POLARITY

TYPE

INT_EN

[7:3] RESERVED

[2] POLARITY:

'0' for active low

'1' for active high

For active low operation, the INT pin should be externally pulled high (up to 3.3 V, but

≤VIO).

The INT pin will be pulled to GND when there is a pending interrupt.

For active high operation, the INT pin should be externally pulled to GND. In this mode, the INT

pin will be pulled to VCC by the device when there is a pending interrupt.

[1] TYPE:

'0' for level trigger

'1' for edge trigger (pulse width is 200 nS)

[0] INT_EN:

'0' to disable all interrupt

'1' to enable all interrupt

STMPE821 Datasheet(PDF) 20 Page - STMicroelectronics