HT48RA0A 데이터 시트보기 (PDF) - Holtek Semiconductor

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HT48RA0A

8-Bit Remote Type MCU

Holtek Semiconductor 

RET

Description

Operation

Affected flag(s)

RET A,x

Description

Operation

Affected flag(s)

RL [m]

Description

Operation

Affected flag(s)

RLA [m]

Description

Operation

Affected flag(s)

RLC [m]

Description

Operation

Affected flag(s)

HT48RA0A

Return from subroutine

The program counter is restored from the stack. This is a 2-cycle instruction.

PC ¬ Stack

TC2 TC1 TO PD OV Z AC C

¾ ¾ ¾¾¾¾¾¾

Return and place immediate data in the accumulator

The program counter is restored from the stack and the accumulator loaded with the speci-

fied 8-bit immediate data.

PC ¬ Stack

ACC ¬ x

TC2 TC1 TO PD OV Z AC C

¾ ¾ ¾¾¾¾¾¾

Rotate data memory left

The contents of the specified data memory are rotated 1 bit left with bit 7 rotated into bit 0.

[m].(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6)

[m].0 ¬ [m].7

TC2 TC1 TO PD OV Z AC C

¾ ¾ ¾¾¾¾¾¾

Rotate data memory left and place result in the accumulator

Data in the specified data memory is rotated 1 bit left with bit 7 rotated into bit 0, leaving the

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

ACC.(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6)

ACC.0 ¬ [m].7

TC2 TC1 TO PD OV Z AC C

¾ ¾ ¾¾¾¾¾¾

Rotate data memory left through carry

The contents of the specified data memory and the carry flag are rotated 1 bit left. Bit 7 re-

places the carry bit; the original carry flag is rotated into the bit 0 position.

[m].(i+1) ¬ [m].i; [m].i:bit i of the data memory (i=0~6)

[m].0 ¬ C

C ¬ [m].7

TC2 TC1 TO PD OV Z AC C

¾

¾

¾¾¾¾¾

Ö

Rev. 1.70

20

July 16, 2003

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