C8051F000/1/2/5/6/7
C8051F010/1/2/5/6/7
Figure 10.10. IP: Interrupt Priority
R/W
Reset Value
-
PT2
PS
PT1
PX1
PT0
PX0
00000000
Bit7
Bit6
Bit5
Bit4
Bit3
Bit2
Bit1
Bit0
SFR Address:
(bit addressable)
0xB8
Bits7-6: UNUSED. Read = 11b, Write = don’t care.
Bit5:
PT2 Timer 2 Interrupt Priority Control.
This bit sets the priority of the Timer 2 interrupts.
0: Timer 2 interrupts set to low priority level.
1: Timer 2 interrupts set to high priority level.
Bit4:
PS: Serial Port (UART) Interrupt Priority Control.
This bit sets the priority of the Serial Port (UART) interrupts.
0: UART interrupts set to low priority level.
1: UART interrupts set to high priority level.
Bit3:
PT1: Timer 1 Interrupt Priority Control.
This bit sets the priority of the Timer 1 interrupts.
0: Timer 1 interrupts set to low priority level.
1: Timer 1 interrupts set to high priority level.
Bit2:
PX1: External Interrupt 1 Priority Control.
This bit sets the priority of the External Interrupt 1 interrupts.
0: External Interrupt 1 set to low priority level.
1: External Interrupt 1 set to high priority level.
Bit1:
PT0: Timer 0 Interrupt Priority Control.
This bit sets the priority of the Timer 0 interrupts.
0: Timer 0 interrupt set to low priority level.
1: Timer 0 interrupt set to high priority level.
Bit0:
PX0: External Interrupt 0 Priority Control.
This bit sets the priority of the External Interrupt 0 interrupts.
0: External Interrupt 0 set to low priority level.
1: External Interrupt 0 set to high priority level.
Rev. 1.7
80