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HT46C22 Datasheet(PDF) 40 Page - Holtek Semiconductor Inc |
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HT46C22 Datasheet(HTML) 40 Page - Holtek Semiconductor Inc |
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40 / 46 page  SZ [m] Skip if data memory is 0 Description If the contents of the specified data memory are 0, the following instruction, fetched during the current instruction execution, is discarded and a dummy cycle is replaced to get the proper in- struction (2 cycles). Otherwise proceed with the next instruction (1 cycle). Operation Skip if [m]=0 Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ 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 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]=0 Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ 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 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].i=0 Affected flag(s) TC2 TC1 TO PD OV Z AC C ¾ ¾ 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 TO PD OV Z AC C ¾ ¾ 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 TO PD OV Z AC C ¾ ¾ ¾¾¾¾¾¾ HT46R22/HT46C22 Rev. 1.10 40 October 2, 2002 |
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