DS80C390_00 Datasheet, PDF (53/155 Pages) Dallas Semiconductor – High-Speed Microcontroller User’s Guide Supplement

Interrupt Priority (IP)
7
6
SFR B8h
-
PS1
-
RW-0
DS80C390 High-Speed Microcontroller User’s Guide Supplement
5
PT2
RW-0
4
PS0
RW-0
3
PT1
RW-0
2
PX1
RW-0
1
PT0
RW-0
0
PX0
RW-0
R=Unrestricted Read, W=Unrestricted Write, -n=Value after Reset
Bit 7
PS1
Bit 6
PT2
Bit 5
PS0
Bit 4
PT1
Bit 3
PX1
Bit 2
PT0
Bit 1
PX0
Bit 0
Reserved. Read data is indeterminate.
Serial Port 1 Interrupt. This bit controls the priority of the serial port 1
interrupt.
0 = Serial port 1 priority is determined by the natural priority order.
1 = Serial port 1 is a high priority interrupt.
Timer 2 Interrupt. This bit controls the priority of Timer 2 interrupt.
0 = Timer 2 is determined by the natural priority order.
1 = Timer 2 is a high priority interrupt.
Serial Port 0 Interrupt. This bit controls the priority of the serial port 0
interrupt.
0 = Serial port 0 priority is determined by the natural priority order.
1 = Serial port 0 is a high priority interrupt.
Timer 1 Interrupt. This bit controls the priority of Timer 1 interrupt.
0 = Timer 1 is determined by the natural priority order.
1 = Timer 1 is a high priority interrupt.
External Interrupt 1. This bit controls the priority of external interrupt 1.
0 = External interrupt 1 is determined by the natural priority order.
1 = External interrupt 1 is a high priority interrupt.
Timer 0 Interrupt. This bit controls the priority of Timer 0 interrupt.
0 = Timer 0 is determined by the natural priority order.
1 = Timer 0 is a high priority interrupt.
External Interrupt 0. This bit controls the priority of external interrupt 0.
0 = External interrupt 0 is determined by the natural priority order.
1 = External interrupt 0 is a high priority interrupt.
53 of 155