SX8661 datasheet(71/88 Pages) SEMTECH

71 / 88 page

ADVANCED COMMUNICATIONS & SENSING

DATASHEET

Revision v3.2, January 2011

www.semtech.com

SX8661

Low Power, Capacitive Button Touch and Proximity Controller

(8 sensors) with LED Drivers and Analog Output

6.4

Status Registers

Address

Name

Bits

Description

Reserved

NVM burn interrupt flag

SPM write interrupt flag

Reserved

Buttons/Proximity interrupt flag

Compensation interrupt flag

0x00

IrqSrc

Operating Mode interrupt flag

Interrupt source flags

0: Inactive (default)

1: Active

INTB goes low if any of

these bits is set.

More than one bit can be

set.

Reading IrqSrc clears it

together with INTB.

Table 28

Interrupt Source

The delay between the actual event and the flags indicating the interrupt source may be one scan period.

IrqSrc[6] is set once NVM burn procedure is completed.

IrqSrc[5] is set once SPM write is effective.

IrqSrc[2] is set if a Button/Proximity event occurred (touch or release if enabled). CapStatLsb show the detailed

status of the Buttons.

IrqSrc[1] is set once compensation procedure is completed either through automatic trigger or via host request.

IrqSrc[0] is set when actually entering Active or Doze mode via host request. CompOpmode shows the current

operation mode.

SX8661 Datasheet(PDF) 71 Page - Semtech Corporation