HT46R064D/065D/066D
Enhanced A/D Type 8-Bit OTP MCU with LED Driver
CPL [m]
Complement Data Memory
Description
Each bit of the specified Data Memory is logically complemented (1¢s complement).
Bits which previously contained a 1 are changed to 0 and vice versa.
Operation
[m] ¬ [m]
Affected flag(s)
Z
CPLA [m]
Complement Data Memory with result in ACC
Description
Each bit of the specified Data Memory is logically complemented (1¢s complement).
Bits which previously contained a 1 are changed to 0 and vice versa. The complemented
result is stored in the Accumulator and the contents of the Data Memory remain un-
changed.
Operation
ACC ¬ [m]
Affected flag(s)
Z
DAA [m]
Decimal-Adjust ACC for addition with result in Data Memory
Description
Convert the contents of the Accumulator value to a BCD ( Binary Coded Decimal) value
resulting from the previous addition of two BCD variables. If the low nibble is greater
than 9 or if AC flag is set, then a value of 6 will be added to the low nibble. Otherwise the
low nibble remains unchanged. If the high nibble is greater than 9 or if the C flag is set,
then a value of 6 will be added to the high nibble. Essentially, the decimal conversion is
performed by adding 00H, 06H, 60H or 66H depending on the Accumulator and flag
conditions. Only the C flag may be affected by this instruction which indicates that if the
original BCD sum is greater than 100, it allows multiple precision decimal addition.
Operation
[m] ¬ ACC + 00H or
[m] ¬ ACC + 06H or
[m] ¬ ACC + 60H or
[m] ¬ ACC + 66H
Affected flag(s)
C
DEC [m]
Decrement Data Memory
Description
Operation
Data in the specified Data Memory is decremented by 1.
[m] ¬ [m] - 1
Affected flag(s)
Z
DECA [m]
Decrement Data Memory with result in ACC
Description
Data in the specified Data Memory is decremented by 1. The result is stored in the Accu-
mulator. The contents of the Data Memory remain unchanged.
Operation
ACC ¬ [m] - 1
Affected flag(s)
Z
HALT
Enter power down mode
Description
This instruction stops the program execution and turns off the system clock. The con-
tents of the Data Memory and registers are retained. The WDT and prescaler are cleared.
The power down flag PDF is set and the WDT time-out flag TO is cleared.
Operation
TO ¬ 0
PDF ¬ 1
Affected flag(s)
TO, PDF
Rev. 1.00
79
January 12, 2011
HOLTEK [ HOLTEK SEMICONDUCTOR INC ]
