HT46R46 datasheet(48/77 Pages) HOLTEK

48 / 77 page

HT46R46/C46/R47/C47/R48A/C48A/R49

Rev. 1.30

June 5, 2008

Mnemonic

Description

Cycles

Flag Affected

Rotate

RRA [m]

RR [m]

RRCA [m]

RRC [m]

RLA [m]

RL [m]

RLCA [m]

RLC [m]

Rotate Data Memory right with result in ACC

Rotate Data Memory right

Rotate Data Memory right through Carry with result in ACC

Rotate Data Memory right through Carry

Rotate Data Memory left with result in ACC

Rotate Data Memory left

Rotate Data Memory left through Carry with result in ACC

Rotate Data Memory left through Carry

Note

None

Data Move

MOV A,[m]

MOV [m],A

MOV A,x

Move Data Memory to ACC

Move ACC to Data Memory

Move immediate data to ACC

Note

None

Bit Operation

CLR [m].i

SET [m].i

Clear bit of Data Memory

Set bit of Data Memory

Note

None

Branch

JMP addr

SZ [m]

SZA [m]

SZ [m].i

SNZ [m].i

SIZ [m]

SDZ [m]

SIZA [m]

SDZA [m]

CALL addr

RET

RET A,x

RETI

Jump unconditionally

Skip if Data Memory is zero

Skip if Data Memory is zero with data movement to ACC

Skip if bit i of Data Memory is zero

Skip if bit i of Data Memory is not zero

Skip if increment Data Memory is zero

Skip if decrement Data Memory is zero

Skip if increment Data Memory is zero with result in ACC

Skip if decrement Data Memory is zero with result in ACC

Subroutine call

Return from subroutine

Return from subroutine and load immediate data to ACC

Return from interrupt

Note

note

Note

None

Table Read

TABRDC [m]

TABRDL [m]

Read table (current page) to TBLH and Data Memory

Read table (last page) to TBLH and Data Memory

Note

None

Miscellaneous

NOP

CLR [m]

SET [m]

CLR WDT

CLR WDT1

CLR WDT2

SWAP [m]

SWAPA [m]

HALT

No operation

Clear Data Memory

Set Data Memory

Clear Watchdog Timer

Pre-clear Watchdog Timer

Swap nibbles of Data Memory

Swap nibbles of Data Memory with result in ACC

Enter power down mode

Note

None

TO, PDF

None

TO, PDF

Note:

1. For skip instructions, if the result of the comparison involves a skip then two cycles are required,

if no skip takes place only one cycle is required.

2. Any instruction which changes the contents of the PCL will also require 2 cycles for execution.

3. For the

²CLR WDT1² and ²CLR WDT2² instructions the TO and PDF flags may be affected by

the execution status. The TO and PDF flags are cleared after both

²CLR WDT1² and

²CLR WDT2² instructions are consecutively executed. Otherwise the TO and PDF flags

remain unchanged.

HT46R46 Datasheet(PDF) 48 Page - Holtek Semiconductor Inc

HT46R46 Datasheet(HTML) 48 Page - Holtek Semiconductor Inc

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