AT89C5122DS-RDRUM datasheet(160/208 Pages) ATMEL

Nome de Peças	AT89C5122DS-RDRUM

Descrição Electrónicos	C51 Microcontroller with USB and Smart Card Reader Interfaces

PDF	208 Pages

Scroll/Zoom	100%

Fabricante Electrônico	ATMEL [ATMEL Corporation]

Página de início	http://www.atmel.com

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160 / 208 page

160

AT83R5122, AT8xC5122/23

4202F–SCR–07/2008

Registers

Reset Value = 0000 0000b (Bit addressable)

Table 98.

Interrupt Enable Register 0 - IEN0 (A8h)

7654

3210

ET1

EX1

ET0

EX0

Bit

Number

Bit

Mnemonic Description

7EA

Enable All interrupt bit

Cleared to disable all interrupts.

Set to enable all interrupts.

6 - 5

Reserved

The value read from this bit is indeterminate. Do not change these bits.

4ES

Serial port Enable bit

Cleared to disable serial port interrupt.

Set to enable serial port interrupt.

3ET1

Timer 1 overflow interrupt Enable bit

Cleared to disable timer 1 overflow interrupt.

Set to enable timer 1 overflow interrupt.

2EX1

External interrupt 1 Enable bit

Cleared to disable external interrupt 1.

Set to enable external interrupt 1.

1ET0

Timer 0 overflow interrupt Enable bit

Cleared to disable timer 0 overflow interrupt.

Set to enable timer 0 overflow interrupt.

0EX0

External interrupt 0 Enable bit

Cleared to disable external interrupt 0.

Set to enable external interrupt 0.

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