參數(shù)資料
型號: HT49C50
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
文件頁數(shù): 38/52頁
文件大小: 318K
代理商: HT49C50
CLR WDT1
Preclear watchdog timer
Description
The TD, PD flags and WDT are all cleared (re-counting from zero), if the
other preclear WDT instruction has been executed. Only execution of this in-
struction without the other preclear instruction sets the indicated flag which
implies that this instruction has been executed and the TO and PD flags re-
main unchanged.
Operation
WDT
PD and TO
00H*
0*
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
0*
0*
CLR WDT2
Preclear watchdog timer
Description
The TO, PD flags and WDT are all cleared (re-counting from zero), if the
other preclear WDT instruction has been executed. Only execution of this in-
struction without the other preclear instruction sets the indicated flag which
implies that this instruction has been executed and the TO and PD flags re-
main unchanged.
Operation
WDT
PD and TO
00H*
0*
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
0*
0*
CPL [m]
Complement data memory
Description
Each bit of the specified data memory is logically complemented (1 s comple-
ment). Bits which previously contained a one are changed to zero and
vice-versa.
Operation
[m]
[m]
Affected flag(s)
TC2
TC1
TO
PD
OV
Z
AC
C
HT49C50
38
August 18, 1999
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