STMPE321 datasheet(18/40 Pages) STMICROELECTRONICS

Part #	STMPE321

Description	3-channel capacitive touchkey controller

PDF	40 Pages

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Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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18 / 40 page

Interrupt controller module

STMPE321

18/40

Doc ID 15791 Rev 3

INT_CTRL

Interrupt control register

Address:

0x08

Type:

R/W

Reset:

0x01

Description:

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

interrupt system device.

654

3210

RESERVED

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. The INT pin is 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 is 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 interrupts

'1' to enable all interrupts

STMPE321 Datasheet(PDF) 18 Page - STMicroelectronics