MSM80C154S Datasheet

  • MSM80C154S

  • USER'S MANUAL

  • 1946.50KB

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隆 Semiconductor
MSM80C154S/83C154S
Interrupt priority register (IP)
MSB
7
PCT
6
鈥?/div>
5
PT2
4
PS
3
PT1
2
PX1
1
PT0
LSB
0
PX0
NAME
IP
BIT LOCATION
IP.0
IP.1
IP.2
IP.3
IP.4
IP.5
IP.6
IP.7
ADDRESS
0B8H
FLAG
PX0
PT0
PX1
PT1
PS
PT2
鈥?/div>
PCT
FUNCTION
Interrupt priority bit for external interrupt 0.
Priority is assigned when bit is "1".
Interrupt priority bit for timer interrupt 0.
Priority is assigned when bit is "1".
Interrupt priority bit for external interrupt 1.
Priority is assigned when bit is "1".
Interrupt priority bit for timer interrupt 1.
Priority is assigned when bit is "1".
Interrupt priority bit for serial port.
Priority is assigned when bit is "1".
Interrupt priority bit for timer interrupt 2.
Priority is assigned when bit is "1".
Reserved bit. The output data is "1" if the bit is read.
Priority interrupt circuit control bit.
The priority register contents are valid and priority assigned interrupts can be
processed when this bit is "0". When the bit is "1", the priority interrupt circuit is
stopped, and interrupts can only be controlled by the interrupt enable register (IE).
16/40

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