HT49R50 Holtek Semiconductor Inc, HT49R50 Datasheet - Page 37

• Manufacturer Part Number: HT49R50
• Description: 8-Bit Microcontroller
• Manufacturer: Holtek Semiconductor Inc

CALL addr
Description
Operation
Affected flag(s)
CLR [m]
Description
Operation
Affected flag(s)
CLR [m].i
Description
Operation
Affected flag(s)
CLR WDT
Description
Operation
Affected flag(s)
Subroutine call
The instruction unconditionally calls a subroutine located at the indicated
address. The program counter increments once to obtain the address of the
next instruction, and pushes this onto the stack. The indicated address is
then loaded. Program execution continues with the instruction at this ad-
dress.
Stack ¬ PC+1
PC ¬ addr
Clear data memory
The contents of the specified data memory are cleared to zero.
[m] ¬ 00H
Clear bit of data memory
The bit i of the specified data memory is cleared to zero.
[m].i ¬ 0
Clear watchdog timer
The WDT is cleared (re-counting from zero). The power down bit (PD) and
time-out bit (TO) are cleared.
WDT ¬ 00H
PD and TO ¬ 0
TC2
TC2
TC2
TC2
¾
¾
¾
¾
TC1
TC1
TC1
TC1
¾
¾
¾
¾
TO
TO
TO
TO
¾
¾
¾
0
PD
PD
PD
PD
¾
¾
¾
0
37
OV
OV
OV
OV
¾
¾
¾
¾
¾
¾
¾
¾
Z
Z
Z
Z
AC
AC
AC
AC
¾
¾
¾
¾
¾
¾
¾
¾
C
C
C
C
August 18, 1999
HT49C50