HT49R50 Holtek Semiconductor Inc, HT49R50 Datasheet - Page 34

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

Notes: x: 8-bit immediate data
NOP
CLR [m]
SET [m]
CLR WDT
CLR WDT1
CLR WDT2
SWAP [m]
SWAPA [m]
HALT
Miscellaneous
Mnemonic
m: 7-bit data memory address
A: accumulator
i: 0~7 number of bits
addr: 10-bit program memory address
Ö: Flag(s) is affected
-: Flag(s) is not affected
*: Flag(s) may be affected by the execution status
**: For the old version of the E.V. chip, the zero flag (Z) can be affected by executing the
MOV A,[M] instruction.
For the new version of the E.V. chip, the zero flag cannot be changed by executing the
MOV A,[M] instruction.
No operation
Clear data memory
Set data memory
Clear Watchdog timer
Pre-clear Watchdog timer
Pre-clear Watchdog timer
Swap nibbles of data memory
Swap nibbles of data memory with result in ACC
Enter power down mode
Description
34
Flag Affected
August 18, 1999
TO*,PD*
TO*,PD*
HT49C50
TO,PD
TO,PD
None
None
None
None
None