參數(shù)資料
型號(hào): AT83C51RB2XXX-SLSIL
廠商: ATMEL CORP
元件分類: 微控制器/微處理器
英文描述: Microcontroller
中文描述: 8-BIT, MROM, 40 MHz, MICROCONTROLLER, PQCC44
封裝: PLASTIC, LCC-44
文件頁數(shù): 48/81頁
文件大小: 1082K
代理商: AT83C51RB2XXX-SLSIL
49
AT80C51RD2/AT83C51Rx2
4113A–8051–09/02
Table 34.
IPL0 Register
IPL0 - Interrupt Priority Register (B8h)
Reset Value = X000 0000b
Bit addressable
7
6
5
4
3
2
1
0
-
PPCL
PT2L
PSL
PT1L
PX1L
PT0L
PX0L
Bit
Number
Bit
Mnemonic
Description
7
-
Reserved
The value read from this bit is indeterminate. Do not set this bit.
6
PPCL
PCA interrupt priority bit
Refer to PPCH for priority level.
5
PT2L
Timer 2 overflow interrupt priority bit
Refer to PT2H for priority level.
4
PSL
Serial port priority bit
Refer to PSH for priority level.
3
PT1L
Timer 1 overflow interrupt priority bit
Refer to PT1H for priority level.
2
PX1L
External interrupt 1 priority bit
Refer to PX1H for priority level.
1
PT0L
Timer 0 overflow interrupt priority bit
Refer to PT0H for priority level.
0
PX0L
External interrupt 0 priority bit
Refer to PX0H for priority level.
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