TS87C52X2 ATMEL Corporation, TS87C52X2 Datasheet - Page 25

• Manufacturer Part Number: TS87C52X2
• Description: 8-bit Microcontroller 8 Kbytes Otp
• Manufacturer: ATMEL Corporation

4184E–8051–09/02
Table 14. IPH Register
IPH - Interrupt Priority High Register (B7h)
Reset Value = XX00 0000b
Not bit addressable
Number
Bit
7
6
5
4
3
2
1
0
7
-
Mnemonic Description
PT2H
PT1H
PX1H
PT0H
PX0H
PSH
Bit
-
-
6
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Reserved
The value read from this bit is indeterminate. Do not set this bit.
Timer 2 overflow interrupt Priority High bit
Serial port Priority High bit
Timer 1 overflow interrupt Priority High bit
External interrupt 1 Priority High bit
Timer 0 overflow interrupt Priority High bit
External interrupt 0 Priority High bit
PT2H PT2
0
0
1
1
PSH
0
0
1
1
PT1H PT1
0
0
1
1
PX1H PX1 Priority Level
0
0
1
1
PT0H PT0
0
0
1
1
PX0H PX0 Priority Level
0
0
1
1
PT2H
5
0
1
0
1
PS
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 Level
Lowest
Highest
Priority Level
Lowest
Highest
Lowest
Highest
Priority Level
Lowest
Highest
Lowest
Highest
PSH
4
PT1H
3
PX1H
2
TS8xCx2X2
PT0H
1
PX0H
0
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