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AT89C55WD-24AI датащи(PDF) 8 Page - ATMEL Corporation

номер детали AT89C55WD-24AI
подробное описание детали  8-bit Microcontroller with 20K Bytes Flash
PDF  35 Pages
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производитель  ATMEL [ATMEL Corporation]
домашняя страница  http://www.atmel.com
Logo ATMEL - ATMEL Corporation

AT89C55WD-24AI датащи(HTML) 8 Page - ATMEL Corporation

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1921C–MICRO–3/05
AT89C55WD
Table 5-3.
AUXR: Auxiliary Register
AUXR
Address = 8EH
Reset Value = XXX00XX0B
Not Bit Addressable
–
–
–
WDIDLE
DISRTO
–
–
DISALE
Bit
7
6
5
4
3
2
1
0
–
Reserved for future expansion
DISALE
Disable/Enable ALE
DISALE
Operating Mode
0
ALE is emitted at a constant rate of 1/6 the oscillator frequency
1
ALE is active only during a MOVX or MOVC instruction
DISRTO
Disable/Enable Reset out
DISRTO
Operating Mode
0
Reset pin is driven High after WDT times out
1
Reset pin is input only
WDIDLE
Disable/Enable WDT in IDLE mode
WDIDLE
Operating Mode
0
WDT continues to count in IDLE mode
1
WDT halts counting in IDLE mode
Table 5-4.
AUXR1: Auxiliary Register 1
AUXR1
Address = A2H
Reset Value = XXXXXXX0B
Not Bit Addressable
––
–
–
–
–
–
DPS
Bit
7
6
5
4
3
2
1
0
–
Reserved for future expansion
DPS
Data Pointer Register Select
DPS
0
Selects DPTR Registers DP0L, DP0H
1
Selects DPTR Registers DP1L, DP1H



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