273
MSM80C154S/83C154S
¡ Semiconductor
Interrupt control bit for external interrupt 0.
Interrupt disabled when bit is "0".
Interrupt enabled when bit is "1".
NAME
ADDRESS
MSB
LSB
7
6
5
4
3
2
1
0
BIT LOCATION
FLAG
FUNCTION
IE
0A8H
EA
—
ET2
ES
ET1
EX1
ET0
EX0
IE.0
EX0
Interrupt control bit for timer interrupt 0.
Interrupt disabled when bit is "0".
Interrupt enabled when bit is "1".
IE.1
ET0
Interrupt control bit for external interrupt 1.
Interrupt disabled when bit is "0".
Interrupt enabled when bit is "1".
IE.2
EX1
Interrupt control bit for timer interrupt 1.
Interrupt disabled when bit is "0".
Interrupt enabled when bit is "1".
IE.3
ET1
Interrupt control bit for serial port.
Interrupt disabled when bit is "0".
Interrupt enabled when bit is "1".
IE.4
ES
Interrupt control bit for timer interrupt 2.
Interrupt disabled when bit is "0".
Interrupt enabled when bit is "1".
IE.5
ET2
Reserved bit. The output data is "1" if the bit is read.
IE.6
—
Overall interrupt control bit.
All interrupts are disabled when bit is "0".
All interrupts are controlled by IE.0 thru IE.5 when bit is "1".
IE.7
EA
Interrupt enable register (IE)