AT80SND1C-ROTIL datasheet(40/210 Pages) ATMEL

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AT8xC51SND1C

4109E–8051–06/03

Registers

Table 51. IEN0 Register

IEN0 (S:A8h) – Interrupt Enable Register 0

Reset Value = 0000 0000b

7654

3210

EAUD

EMP3

ET1

EX1

ET0

EX0

Bit

Number

Bit

Mnemonic

Description

7EA

Enable All Interrupt Bit

Set to enable all interrupts.

Clear to disable all interrupts.

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

clearing its interrupt enable bit.

EAUD

Audio Interface Interrupt Enable Bit

Set to enable audio interface interrupt.

Clear to disable audio interface interrupt.

5EMP3

MP3 Decoder Interrupt Enable Bit

Set to enable MP3 decoder interrupt.

Clear to disable MP3 decoder interrupt.

4ES

Serial Port Interrupt Enable Bit

Set to enable serial port interrupt.

Clear to disable serial port interrupt.

3ET1

Timer 1 Overflow Interrupt Enable Bit

Set to enable timer 1 overflow interrupt.

Clear to disable timer 1 overflow interrupt.

2EX1

External Interrupt 1 Enable bit

Set to enable external interrupt 1.

Clear to disable external interrupt 1.

1ET0

Timer 0 Overflow Interrupt Enable Bit

Set to enable timer 0 overflow interrupt.

Clear to disable timer 0 overflow interrupt.

0EX0

External Interrupt 0 Enable Bit

Set to enable external interrupt 0.

Clear to disable external interrupt 0.

AT80SND1C-ROTIL Datasheet(PDF) 40 Page - ATMEL Corporation

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