ht827a0 Holtek Semiconductor Inc., ht827a0 Datasheet - Page 34

• Manufacturer Part Number: ht827a0
• Description: 8-bit Microcontroller With Voice Rom
• Manufacturer: Holtek Semiconductor Inc.

CLR WDT1
Description
Operation
Affected flag(s)
CLR WDT2
Description
Operation
Affected flag(s)
CPL [m]
Description
Operation
Affected flag(s)
Preclear watchdog timer
The PD, TO flags, WDT and the WDT Prescaler are all cleared (re-count
from zero) if the other preclear WDT instruction has been executed. Execu-
tion only of this instruction without the other preclear instruction sets the
indicated flag, which implies that this instruction is executed and the PD
and TO flags remain unchanged.
WDT & WDT Prescaler ¬ 00H*
PD & TO ¬ 0*
Preclear watchdog timer
The PD, TO flags, WDT and the WDT Prescaler are all cleared (re-count
from zero) if the other preclear WDT instruction has been executed. Execu-
tion only of this instruction without the other preclear instruction sets the
indicated flag, which implies that this instruction is executed and the PD
and TO flags remain unchanged.
WDT & WDT Prescaler ¬ 00H*
PD & TO ¬ 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
TC2
TC2
¾
¾
¾
TC1
TC1
TC1
¾
¾
¾
TO
TO
TO
0*
0*
¾
PD
PD
PD
0*
0*
¾
34
OV
OV
OV
¾
¾
¾
¾
¾
Z
Z
Z
Ö
AC
AC
AC
¾
¾
¾
¾
¾
¾
C
C
C
March 15, 2000
HT827A0