T89C51CC01 Atmel, T89C51CC01 Datasheet - Page 146

• Manufacturer Part Number: T89C51CC01
• Description: Enhanced 8-Bit Microcontroller
• Manufacturer: Atmel

146
T89C51CC01
Table 119. IPH0 Register
IPH0 (B7h)
Interrupt High Priority Register
Reset Value = X000 0000b
Number
Bit
7
-
7
6
5
4
3
2
1
0
Mnemonic Description
PPCH
PPCH
PX1H
PX0H
PT2H
PT1H
PT0H
PSH
Bit
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA Interrupt Priority Level Most Significant bit
PPCH PPC
0
0
1
1
Timer 2 Overflow Interrupt High Priority bit
PT2H PT2
0
0
1
1
Serial Port High Priority bit
PSH
0
0
1
1
Timer 1 Overflow Interrupt High Priority bit
PT1H PT1
0
0
1
1
External Interrupt 1 High Priority bit
PX1H PX1
0
0
1
1
Timer 0 Overflow Interrupt High Priority bit
PT0H PT0
0
0
1
1
External Interrupt 0 high priority bit
PX0H PX0
0
0
1
1
PT2H
5
PS
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Priority level
Lowest
Highest priority
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
PSH
4
PT1H
3
PX1H
2
PT0H
1
4129K–CAN–01/05
PX0H
0