Datasheet

81
4337K–USB–04/08
AT89C5130A/31A-M
Reset Value = 0000 0000b
Bit addressable
Table 16-3. IPL0 Register
IPL0 - Interrupt Priority Register (B8h)
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.
7 6 5 4 3 2 1 0
- PPCL PT2L PSL PT1L PX1L PT0L PX0L