HT48R30A datasheet(41/43 Pages) HOLTEK

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SZA [m]

Move data memory to ACC, skip if 0

Description

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

the contents is 0, the following instruction, fetched during the current in-

struction execution, is discarded and a dummy cycle is replaced to get the

proper instruction (2 cycles). Otherwise proceed with the next instruction (1

cycle).

Operation

Skip if [m]=0

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

SZ [m].i

Skip if bit "i" of the data memory is 0

Description

If bit "i" of the specified data memory is 0, the following instruction, fetched

during the current instruction execution, is discarded and a dummy cycle is

replaced to get the proper instruction (2 cycles). Otherwise proceed with the

next instruction (1 cycle).

Operation

Skip if [m].i=0

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

TABRDC [m]

Move the ROM code (current page) to TBLH and data memory

Description

The low byte of ROM code (current page) addressed by the table pointer

(TBLP) is moved to the specified data memory and the high byte transferred

to TBLH directly.

Operation

[m] ¬ ROM code (low byte)

TBLH ¬ ROM code (high byte)

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

TABRDL [m]

Move the ROM code (last page) to TBLH and data memory

Description

The low byte of ROM code (last page) addressed by the table pointer (TBLP)

is moved to the data memory and the high byte transferred to TBLH directly.

Operation

[m] ¬ ROM code (low byte)

TBLH ¬ ROM code (high byte)

Affected flag(s)

TC2 TC1

¾¾¾¾¾¾

HT48R30A-1

Rev. 1.10

July 2, 2001

HT48R30A Scheda tecnica(PDF) 41 Page - Holtek Semiconductor Inc

HT48R30A Scheda tecnica(HTML) 41 Page - Holtek Semiconductor Inc

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