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AT80C51RB2-3CSIM bảng dữ liệu(PDF) 49 Page - ATMEL Corporation

tên linh kiện AT80C51RB2-3CSIM
Giải thích chi tiết về linh kiện  80C51 High Performance ROM 8-bit Microcontroller
PDF  83 Pages
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nhà sản xuất  ATMEL [ATMEL Corporation]
Trang chủ  http://www.atmel.com
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AT80C51RB2-3CSIM bảng dữ liệu(HTML) 49 Page - ATMEL Corporation

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AT80C51RD2/AT83C51Rx2
4113B–8051–03/05
Table 35. IPH0 Register
IPH0 - Interrupt Priority High Register (B7h)
Reset Value = X000 0000b
Not bit addressable
7654
3210
-
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.
6PPCH
PCA interrupt priority high bit.
PPCH PPCL Priority Level
0
0
Lowest
01
10
1
1
Highest
5PT2H
Timer 2 overflow interrupt priority high bit
PT2H
PT2L
Priority Level
0
0
Lowest
01
10
1
1
Highest
4PSH
Serial port priority high bit
PSH
PSL
Priority Level
0
0
Lowest
0
1
1
0
1
1
Highest
3PT1H
Timer 1 overflow interrupt priority high bit
PT1H
PT1L
Priority Level
00
Lowest
01
10
1
1
Highest
2PX1H
External interrupt 1 priority high bit
PX1H
PX1L
Priority Level
0
0
Lowest
01
10
1
1
Highest
1PT0H
Timer 0 overflow interrupt priority high bit
PT0H
PT0L
Priority Level
0
0
Lowest
0
1
10
1
1
Highest
0PX0H
External interrupt 0 priority high bit
PX0H
PX0L
Priority Level
0
0
Lowest
01
10
1
1
Highest



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