T89C51RD2-3CBC-L ATMEL [ATMEL Corporation], T89C51RD2-3CBC-L Datasheet - Page 39

• Manufacturer Part Number: T89C51RD2-3CBC-L
• Description: 0 to 40MHz Flash Programmable 8-bit Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

IP - Interrupt Priority Register (B8h)
Reset Value = X000 0000b
Bit addressable
Rev. F - 15 February, 2001
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic
PPC
PX1
PX0
PT2
PT1
PT0
Bit
PS
-
PPC
6
Reserved
PCA interrupt priority bit
Timer 2 overflow interrupt Priority bit
Serial port Priority bit
Timer 1 overflow interrupt Priority bit
External interrupt 1 Priority bit
Timer 0 overflow interrupt Priority bit
External interrupt 0 Priority bit
The value read from this bit is indeterminate. Do not set this bit.
Refer to PPCH for priority level.
Refer to PT2H for priority level.
Refer to PSH for priority level.
Refer to PT1H for priority level.
Refer to PX1H for priority level.
Refer to PT0H for priority level.
Refer to PX0H for priority level.
PT2
5
Table 19. IP Register
PS
4
PT1
3
Description
PX1
2
T89C51RD2
PT0
1
PX0
0
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