HT47C20L(2000) View Datasheet(PDF) - Holtek Semiconductor
Part Name
Description
Manufacturer
HT47C20L Datasheet PDF : 55 Pages
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DECA [m]
Description
Operation
Affected flag(s)
HALT
Description
Operation
Affected flag(s)
INC [m]
Description
Operation
Affected flag(s)
INCA [m]
Description
Operation
Affected flag(s)
HT47C20L
Decrement data memory and place result in accumulator
Data in the specified data memory is decremented by one, leaving the re-
sult in the accumulator. The contents of the data memory remain un-
changed.
ACC ¬ [m]-1
TC2 TC1 TO PD OV Z AC C
¾ ¾¾¾¾ Ö ¾¾
Enter power down mode
This instruction stops program execution and turn off the system clock.
The contents of the RAM and registers are retained. The WDT is cleared.
The power down bit (PD) is set and the WDT time-out bit (TO) is cleared.
PC ¬ PC+1
PD ¬ 1
TO ¬ 0
TC2 TC1 TO PD OV Z AC C
¾ ¾ 0 1 ¾¾¾¾
Increment data memory
Data in the specified data memory is incremented by one.
[m] ¬ [m]+1
TC2 TC1 TO PD OV Z AC C
¾ ¾¾¾¾ Ö ¾¾
Increment data memory and place result in accumulator
Data in the specified data memory is incremented by one, leaving the re-
sult in the accumulator. The contents of the data memory remain un-
changed.
ACC ¬ [m]+1
TC2 TC1 TO PD OV Z AC C
¾ ¾¾¾¾ Ö ¾¾
43
January 18, 2000
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