Rainbow Electronics AT89C5131 - Manual (Page 92)

92
AT89C5131
4136A–USB–03/03
Table 65. IE0 Register
IE0 - Interrupt Enable Register (A8h)
Reset Value = 0000 0000b
Bit addressable
7 6 5 4 3 2 1 0
EA EC ET2 ES ET1 EX1 ET0 EX0
Bit
Number
Bit
Mnemonic Description
7 EA
Enable All interrupt bit
Cleared to disable all interrupts.
Set to enable all interrupts.
6 EC
PCA interrupt enable bit
Cleared to disable.
Set to enable.
5 ET2
Timer 2 overflow interrupt Enable bit
Cleared to disable Timer 2 overflow interrupt.
Set to enable Timer 2 overflow interrupt.
4 ES
Serial port Enable bit
Cleared to disable serial port interrupt.
Set to enable serial port interrupt.
3 ET1
Timer 1 overflow interrupt Enable bit
Cleared to disable Timer 1 overflow interrupt.
Set to enable Timer 1 overflow interrupt.
2 EX1
External interrupt 1 Enable bit
Cleared to disable external interrupt 1.
Set to enable external interrupt 1.
1 ET0
Timer 0 overflow interrupt Enable bit
Cleared to disable timer 0 overflow interrupt.
Set to enable timer 0 overflow interrupt.
0 EX0
External interrupt 0 Enable bit
Cleared to disable external interrupt 0.
Set to enable external interrupt 0.