TS80C51RA2 Atmel Corporation, TS80C51RA2 Datasheet - Page 41

• Manufacturer Part Number: TS80C51RA2
• Description: High Performance 8-bit Microcontroller
• Manufacturer: Atmel Corporation

4188A–8051–10/02
Table 22. IP Register
IP - Interrupt Priority Register (B8h)
Reset Value = X000 0000b
Bit addressable
Number
Bit
7
-
7
6
5
4
3
2
1
0
Bit Mnemonic
PPC
6
PPC
PX1
PX0
PT2
PT1
PT0
PS
-
PT2
5
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA interrupt priority bit
Refer to PPCH for priority level.
Timer 2 overflow interrupt Priority bit
Refer to PT2H for priority level.
Serial port Priority bit
Refer to PSH for priority level.
Timer 1 overflow interrupt Priority bit
Refer to PT1H for priority level.
External interrupt 1 Priority bit
Refer to PX1H for priority level.
Timer 0 overflow interrupt Priority bit
Refer to PT0H for priority level.
External interrupt 0 Priority bit
Refer to PX0H for priority level.
PS
4
PT1
3
PX1
2
TS8xC51Rx2
PT0
1
PX0
0
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