參數(shù)資料
型號(hào)： HT47C20
廠商： Holtek Semiconductor Inc.
元件分類： 8位微控制器
英文描述： 8-BIT MICROCONTROLLER
中文描述： 8位微控制器
文件頁(yè)數(shù)： 49/56頁(yè)
文件大?。?/td> 352K
代理商： HT47C20
RRA [m]
Rotate right and place result in accumulator
Description
Data in the specified data memory is rotated right one bit with bit 0 ro-
tated into bit 7, leaving the rotated result in the accumulator. The con-
tents of the data memory remain unchanged.
Operation
ACC.(i)
ACC.7
[m].(i+1); [m].i:bit i of the data memory (i=0-6)
[m].0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RRC [m]
Rotate data memory right through carry
Description
Thecontentsofthespecifieddatamemoryandthecarryflagaretogether
rotated right one bit. Bit 0 replaces the carry bit; the original carry flag is
rotated into the bit 7 position.
Operation
[m].i
[m].7
C
[m].(i+1); [m].i:bit i of the data memory (i=0-6)
C
[m].0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
RRCA [m]
Rotate right through carry and place result in accumulator
Description
Data of the specified data memory and the carry flag are together rotated
right one bit. Bit 0 replaces the carry bit and the original carry flag is ro-
tated into the bit 7 position. The rotated result is stored in the accumula-
tor. The contents of the data memory remain unchanged.
Operation
ACC.i
ACC.7
C
[m].(i+1); [m].i:bit i of the data memory (i=0-6)
C
[m].0
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT47C20
49
January 18, 2000
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