P8XC557E8 Datasheet, PDF (43/84 Pages) NXP Semiconductors – 8 BIT MICROCONTROLLER

Philips Semiconductors
8-bit microcontroller
Product specification
P8xC557E8
14.5 Interrupt Enable and Priority Registers
14.5.1 INTERRUPT ENABLE REGISTER 0 (IEN0)
Logic 0 = interrupt disabled; logic 1 = interrupt enabled.
Table 61 Interrupt Enable Register 0 (address A8H)
7
6
5
4
3
2
1
EA
EAD
ES1
ES0
ET1
EX1
ET0
Table 62 Description of IEN0 bits
BIT
SYMBOL
DESCRIPTION
7
EA
General enable/disable control. If bit EA is:
LOW, then no interrupt is enabled.
HIGH, then any individually enabled interrupt will be accepted.
6
EAD
Enable ADC interrupt.
5
ES1
Enable SIO1 (I²C-bus) interrupt.
4
ES0
Enable SIO0 (UART) interrupt.
3
ET1
Enable Timer 1 interrupt.
2
EX1
Enable External 1 interrupt / Seconds interrupt.
1
ET0
Enable Timer 0 interrupt.
0
EX0
Enable External 0 interrupt.
14.5.2 INTERRUPT ENABLE REGISTER 1 (IEN1)
Logic 0 = interrupt disabled; logic 1 = interrupt enabled.
Table 63 Interrupt Enable Register 1 (address E8H)
7
6
5
4
ET2
ECM2
ECM1
ECM0
3
ECT3
2
ECT2
1
ECT1
Table 64 Description of IEN1 bits
BIT
SYMBOL
DESCRIPTION
7
ET2
Enable T2 overflow interrupt(s).
6
ECM2 Enable T2 comparator 2 interrupt.
5
ECM1 Enable T2 comparator 1 interrupt.
4
ECM0 Enable T2 comparator 0 interrupt.
3
ECT3 Enable T2 capture register 3 interrupt.
2
ECT1 Enable T2 capture register 2 interrupt.
1
ECT1 Enable T2 capture register 1 interrupt.
0
ECT0 Enable T2 capture register 0 interrupt.
0
EX0
0
ECT0
1999 Mar 12
43