HALT

Enter power down 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

¬ PC+1

PD

¬ 1

TO

¬ 0

Affected flag(s)

TC2

TC1

TO

PD

OV

Z

AC

C

¾¾

01

¾¾¾¾

INC [m]

Increment data memory

Description

Data in the specified data memory is incremented by 1

Operation

[m]

¬ [m]+1

Affected flag(s)

TC2

TC1

TO

PD

OV

Z

AC

C

¾

¾

¾

¾

¾Ö¾

¾

INCA [m]

Increment data memory and place result in the accumulator

Description

Data in the specified data memory is incremented by 1, leaving the result in the accumula-

tor. The contents of the data memory remain unchanged.

Operation

¬ [m]+1

Affected flag(s)

TC2

TC1

TO

PD

OV

Z

AC

C

¾

¾

¾

¾

¾Ö¾

¾

JMP addr

Directly jump

Description

Bits of the program counter are replaced with the directly-specified address uncondition-

ally, and control is passed to this destination.

Operation

PC

¬addr

Affected flag(s)

TC2

TC1

TO

PD

OV

Z

AC

C

¾

¾

¾¾¾¾¾¾

MOV A,[m]

Move data memory to the accumulator

Description

The contents of the specified data memory are copied to the accumulator.

Operation

ACC

¬ [m]

Affected flag(s)

TC2

TC1

TO

PD

OV

Z

AC

C

¾

¾

¾¾¾¾¾¾

HT82K68A

Rev. 1.10

21

November 20, 2001