參數(shù)資料
型號(hào): T89C51RD2-SLUCM
廠商: TEMIC SEMICONDUCTORS
元件分類: 微控制器/微處理器
英文描述: 0 to 40 MHz Flash Programmable 8-bit Microcontroller
中文描述: 8-BIT, FLASH, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 41/104頁
文件大?。?/td> 798K
代理商: T89C51RD2-SLUCM
41
T89C51RD2
4243G
8051
05/03
Table 25.
IPH Register
IPH - Interrupt Priority High Register (B7h)
7
6
Reset Value = X000 0000b
Not bit addressable
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
0
1
1
0
1
1
Lowest
Highest
5
PT2H
Timer 2 overflow interrupt Priority High bit
PT2H
PT2 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
4
PSH
Serial port Priority High bit
PSH
PS
0
0
0
1
1
0
1
1
Priority Level
Lowest
Highest
3
PT1H
Timer 1 overflow interrupt Priority High bit
PT1H
PT1 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
2
PX1H
External interrupt 1 Priority High bit
PX1H
PX1 Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
1
PT0H
Timer 0 overflow interrupt Priority High bit
PT0H
PT0
Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
0
PX0H
External interrupt 0 Priority High bit
PX0H
PX0
0
0
0
1
1
0
1
1
Priority Level
Lowest
Highest
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