AT83SND2CMP3B datasheet(42/242 Pages) ATMEL

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4341H–MP3–10/07

AT8xC51SND2C/MP3B

Table 9-5.

IEN1 Register

IEN1 (S:B1h) – Interrupt Enable Register 1

Reset Value = 0000 0000b

EUSB

EKB

ESPI

EI2C

EMMC

Bit Number

Bit

Mnemonic

Description

Reserved

The value read from this bit is always 0. Do not set this bit.

EUSB

USB Interface Interrupt Enable Bit

Set this bit to enable USB interrupts.

Clear this bit to disable USB interrupts.

Reserved

The value read from this bit is always 0. Do not set this bit.

EKB

Keyboard Interface Interrupt Enable Bit

Set to enable Keyboard interrupt.

Clear to disable Keyboard interrupt.

EADC

A to D Converter Interrupt Enable Bit

Set to enable ADC interrupt.

Clear to disable ADC interrupt.

ESPI

SPI Controller Interrupt Enable Bit

Set to enable SPI interrupt.

Clear to disable SPI interrupt.

EI2C

Two Wire Controller Interrupt Enable Bit

Set to enable Two Wire interrupt.

Clear to disable Two Wire interrupt.

EMMC

MMC Interface Interrupt Enable Bit

Set to enable MMC interrupt.

Clear to disable MMC interrupt.

AT83SND2CMP3B Datasheet(PDF) 42 Page - ATMEL Corporation

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