AT83C51SND1C_03 ATMEL [ATMEL Corporation], AT83C51SND1C_03 Datasheet - Page 40
AT83C51SND1C_03
Manufacturer Part Number
AT83C51SND1C_03
Description
Single-Chip Flash Microcontroller with MP3 Decoder and Human Interface
Manufacturer
ATMEL [ATMEL Corporation]
Datasheet
1.AT83C51SND1C_03.pdf
(210 pages)
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Registers
40
AT8xC51SND1C
Table 51. IEN0 Register
IEN0 (S:A8h) – Interrupt Enable Register 0
Reset Value = 0000 0000b
Number
EA
Bit
7
7
6
5
4
3
2
1
0
Mnemonic Description
EAUD
EAUD
EMP3
ET1
EX1
ET0
EX0
Bit
EA
ES
6
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.
Set to enable audio interface interrupt.
Clear to disable audio interface interrupt.
MP3 Decoder Interrupt Enable Bit
Set to enable MP3 decoder interrupt.
Clear to disable MP3 decoder interrupt.
Serial Port Interrupt Enable Bit
Set to enable serial port interrupt.
Clear to disable serial port interrupt.
Timer 1 Overflow Interrupt Enable Bit
Set to enable timer 1 overflow interrupt.
Clear to disable timer 1 overflow interrupt.
External Interrupt 1 Enable bit
Set to enable external interrupt 1.
Clear to disable external interrupt 1.
Timer 0 Overflow Interrupt Enable Bit
Set to enable timer 0 overflow interrupt.
Clear to disable timer 0 overflow interrupt.
External Interrupt 0 Enable Bit
Set to enable external interrupt 0.
Clear to disable external interrupt 0.
Audio Interface Interrupt Enable Bit
EMP3
5
ES
4
ET1
3
EX1
2
ET0
1
4109E–8051–06/03
EX0
0
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