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AT89C51ED2-RDTIM 数据表(PDF) 77 Page - ATMEL Corporation

部件名 AT89C51ED2-RDTIM
功能描述  8-bit Flash Microcontroller
PDF  137 Pages
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制造商  ATMEL [ATMEL Corporation]
网页  http://www.atmel.com
标志 ATMEL - ATMEL Corporation

AT89C51ED2-RDTIM 数据表(HTML) 77 Page - ATMEL Corporation

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AT89C51RD2/ED2
4235E–8051–04/04
Table 54. IPL0 Register
IPL0 - Interrupt Priority Register (B8h)
Reset Value = X000 0000b
Bit addressable
76
54
32
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.
5PT2L
Timer 2 overflow interrupt Priority bit
Refer to PT2H for priority level.
4
PSL
Serial port Priority bit
Refer to PSH for priority level.
3PT1L
Timer 1 overflow interrupt Priority bit
Refer to PT1H for priority level.
2PX1L
External interrupt 1 Priority bit
Refer to PX1H for priority level.
1PT0L
Timer 0 overflow interrupt Priority bit
Refer to PT0H for priority level.
0PX0L
External interrupt 0 Priority bit
Refer to PX0H for priority level.



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