HTG12N0 datasheet(29/30 Pages) HOLTEK

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SOUND ONE

Turn on sound one mode

Machine Code

0 1 0 0 1 0 0 0

Description

The activated sound plays only one time.

SOUND n

Active SOUND Channel n

Machine Code

0 0 0 0 n n n n

0 1 0 0 0 1 0 1

Description

The specified sound begins playing and overwriting the previous singing

sound. (nnn=0~15)

STC

Set carry flag

Machine Code

0 0 1 0 1 0 1 1

Description

The carry flag is set to one.

Operation

← 1

SUB A,XH

Subtract immediate data from accumulator

Machine Code

0 1 0 0 0 0 0 1

0 0 0 0 d d d d

Description

The specified data is subtracted from the accumulator. Carry is affected.

Operation

ACC

← ACC+XH+1

SUB A,[R1R0]

Subtract data memory contents from accumulator

Machine Code

0 0 0 0 1 0 1 1

Description

The contents of the data memory addressed by the register pair “R1,R0” is

subtracted from the accumulator. Carry is affected.

Operation

ACC

← ACC+M(R1,R0)+1

TIMER OFF

Set timer to stop counting

Machine Code

0 0 1 1 1 0 0 1

Description

The timer stops counting when the “TIMER OFF” instruction is executed.

TIMER ON

Set timer start counting

Machine Code

0 0 1 1 1 0 0 0

Description

The timer starts counting when the “TIMER ON” instruction is executed.

TIMER XXH

Set immediate data to timer counter

Machine Code

0 1 0 0 0 1 1 1

d d d d d d d d

Description

The 8-bit data specified by code is loaded to the Timer counter.

Operation

TIMER

← XXH

HTG12N0

18th Mar ’99

HTG12N0 Scheda tecnica(PDF) 29 Page - Holtek Semiconductor Inc

HTG12N0 Scheda tecnica(HTML) 29 Page - Holtek Semiconductor Inc

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