TS87C51RD2 ATMEL Corporation, TS87C51RD2 Datasheet - Page 43

• Manufacturer Part Number: TS87C51RD2
• Description: (TS8xC51Rx2) High Performance 8-bit Microcontroller
• Manufacturer: ATMEL Corporation

4188E–8051–08/06
Table 6-19.
Reset Value = X000 0000b
Not bit addressable
Number
Bit
7
7
6
5
4
3
2
1
0
-
IPH Register
IPH - Interrupt Priority High Register (B7h)
PPCH
Mnemonic
6
PPCH
PX1H
PX0H
PT2H
PT1H
PT0H
PSH
Bit
-
PT2H
5
Description
Reserved
The value read from this bit is indeterminate. Do not set this bit.
PCA interrupt priority bit high.
PPCH
Timer 2 overflow interrupt Priority High bit
PT2H
Serial port Priority High bit
Timer 1 overflow interrupt Priority High bit
PT1H
External interrupt 1 Priority High bit
PX1H
Timer 0 overflow interrupt Priority High bit
PT0H
External interrupt 0 Priority High bit
PX0H
PSH
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
0
0
1
1
PT2
0
1
0
1
PS
0
1
0
1
PT1
0
1
0
1
PX1
0
1
0
1
PT0
0
1
0
1
PX0
0
1
0
1
PPC
0
1
0
1
PSH
4
Priority Level
Lowest
Highest
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
Lowest
Highest
Priority Level
PT1H
3
PX1H
AT/TS8xC51Rx2
2
PT0H
1
PX0H
0
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