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TS80C51RA2-VCKB Datasheet(PDF) 43 Page - ATMEL Corporation

Part # TS80C51RA2-VCKB
Description  High Performance 8-bit Microcontrollers
PDF  74 Pages
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Manufacturer  ATMEL [ATMEL Corporation]
Direct Link  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

TS80C51RA2-VCKB Datasheet(HTML) 43 Page - ATMEL Corporation

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Rev. C - 06 March, 2001
43
TS80C51RA2/RD2
TS83C51RB2/RC2/RD2
TS87C51RB2/RC2/RD2
Table 21. IPH Register
IPH - Interrupt Priority High Register (B7h)
Reset Value = X000 0000b
Not bit addressable
7
6
5
4
3
2
1
0
-
PPCH
PT2H
PSH
PT1H
PX1H
PT0H
PX0H
Bit
Number
Bit
Mnemonic
Description
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
PPCH
PCA interrupt priority bit high.
PPCH
PPC
Priority Level
0
0
Lowest
01
10
1
1
Highest
5
PT2H
Timer 2 overflow interrupt Priority High bit
PT2H
PT2
Priority Level
0
0
Lowest
01
10
1
1
Highest
4
PSH
Serial port Priority High bit
PSH
PS
Priority Level
0
0
Lowest
01
10
1
1
Highest
3
PT1H
Timer 1 overflow interrupt Priority High bit
PT1H
PT1
Priority Level
0
0
Lowest
01
10
1
1
Highest
2
PX1H
External interrupt 1 Priority High bit
PX1H
PX1
Priority Level
0
0
Lowest
01
10
1
1
Highest
1
PT0H
Timer 0 overflow interrupt Priority High bit
PT0H
PT0
Priority Level
0
0
Lowest
01
10
1
1
Highest
0
PX0H
External interrupt 0 Priority High bit
PX0H
PX0
Priority Level
0
0
Lowest
01
10
1
1
Highest



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