CLR WDT1
Description
Operation
Affected flag(s)
CLR WDT2
Description
Operation
Affected flag(s)
CPL [m]
Description
Operation
Affected flag(s)
HT48CXX/HT48RXX
Preclear watchdog timer
The TD, PD flags, WDT and the WDT Prescaler has cleared (re-counting from
zero), if the other preclear WDT instruction has been executed. Only execu-
tion of this instruction without the other preclear instruction sets the indi-
cated flag which implies that this instruction has been executed and the TO
and PD flags remain unchanged.
WDT and WDT Prescaler ← 00H*
PD and TO ← 0*
TC2 TC1 TO PD OV Z AC C
– – 0* 0* – – – –
Preclear watchdog timer
The TO, PD flags, WDT and the WDT Prescaler are cleared (re-counting from
zero), if the other preclear WDT instruction has been executed. Only execu-
tion of this instruction without the other preclear instruction sets the indi-
cated flag which implies that this instruction has been executed and the TO
and PD flags remain unchanged.
WDT and WDT Prescaler ← 00H*
PD and TO ← 0*
TC2 TC1 TO PD OV Z AC C
– – 0* 0* – – – –
Complement data memory
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.
[m] ← [m]
TC2 TC1 TO PD OV Z AC C
–
–
–
–
–
√
–
–
35
25th May ’99