HT9480 datasheet(46/57 Pages) HOLTEK

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DECA [m]

Decrement data memory - place result in accumulator

Description

Data in the specified data memory is decremented by one, leaving the result

in the accumulator. The contents of the data memory remain unchanged.

Operation

ACC

← [m]–1

Affected flag(s)

TC2

TC1

––

–

√

––

HALT

Enter powerdown mode

Description

This instruction stops program execution and turns off the system clock. The

contents of the RAM and registers are retained. The WDT and prescaler are

cleared. The power down bit (PD) is set and the WDT time-out bit (TO) is

cleared.

Operation

← PC+1

← 1

← 0

Affected flag(s)

TC2

TC1

–

––

INC [m]

Increment data memory

Description

Data in the specified data memory is incremented by one

Operation

[m]

← [m]+1

Affected flag(s)

TC2

TC1

––

–

√

––

INCA [m]

Increment data memory - place result in accumulator

Description

Data in the specified data memory is incremented by one, leaving the result

in the accumulator. The contents of the data memory remain unchanged.

Operation

ACC

← [m]+1

Affected flag(s)

TC2

TC1

––

–

√

––

HT9480

23th Feb ’98

HT9480 Fiches technique(PDF) 46 Page - Holtek Semiconductor Inc

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