T83C5121XXX-ICSIL datasheet(20/115 Pages) ATMEL

tên linh kiện	T83C5121XXX-ICSIL

Giải thích chi tiết về linh kiện	8-bit Microcontroller with Multiprotocol Smart Card Interface

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A/T8xC5121

4164G–SCR–07/06

Table 5. IE0 Register

IE0

Interrupt Enable Register (A8h)

Reset Value = 0XX0 0000b

ET1

EX1

ET0

EX0

Bit

Number

Bit

Mnemonic

Description

7EA

Enable All interrupt bit

Clear to disable all interrupts.

Set to enable all interrupts.

If EA = 1, each interrupt source is individually enabled or disabled by setting or

clearing its interrupt enable bit.

Reserved

The value read from this bit is indeterminate. Do not set this bit.

Reserved

The value read from this bit is indeterminate. Do not set this bit.

4ES

Serial port Enable bit

Clear to disable serial port interrupt.

Set to enable serial port interrupt.

3ET1

Timer 1 overflow interrupt Enable bit

Clear to disable Timer 1 overflow interrupt.

Set to enable Timer 1 overflow interrupt.

2EX1

External interrupt 1 Enable bit

Clear to disable external interrupt 1.

Set to enable external interrupt 1.

1ET0

Timer 0 overflow interrupt Enable bit

Clear to disable Timer 0 overflow interrupt.

Set to enable Timer 0 overflow interrupt.

0EX0

External interrupt 0 Enable bit

Clear to disable external interrupt 0.

Set to enable external interrupt 0.

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