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SN8P2501A Datasheet(PDF) 3 Page - SONiX Technology Company |
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SN8P2501A Datasheet(HTML) 3 Page - SONiX Technology Company |
3 / 69 page SN8P2501A 8-Bit Micro-Controller SONiX TECHNOLOGY CO., LTD Page 2 Preliminary Version 0.2 Table of Content AMENDENT HISTORY ................................................................................................................. 1 1 1 1 PRODUCT OVERVIEW ..................................................................................................... 6 1.1 SYSTEM BLOCK DIAGRAM.............................................................................................. 7 1.2 PIN ASSIGNMENT............................................................................................................. 8 1.3 PIN DESCRIPTIONS ......................................................................................................... 8 1.4 PIN CIRCUIT DIAGRAMS.................................................................................................. 9 2 2 2 CENTRAL PROCESSOR UNIT (CPU) ............................................................................ 10 2.1 MEMORY MAP ................................................................................................................ 10 2.1.1 PROGRAM MEMORY (ROM)................................................................................... 10 2.1.2 DATA MEMORY (RAM) ............................................................................................ 17 2.1.3 CODE OPTION TABLE............................................................................................. 18 2.1.4 SYSTEM REGISTER ................................................................................................ 19 2.2 ACCUMULATOR.............................................................................................................. 22 2.3 PROGRAM FLAG ............................................................................................................ 23 2.3.1 RESET FLAG............................................................................................................ 23 2.3.2 CARRY FLAG ........................................................................................................... 23 2.3.3 DECIMAL CARRY FLAG .......................................................................................... 23 2.3.4 ZERO FLAG.............................................................................................................. 23 2.4 PROGRAM COUNTER .................................................................................................... 24 2.4.1 ONE ADDRESS SKIPPING ...................................................................................... 24 2.4.2 MULTI-ADDRESS JUMPING.................................................................................... 25 2.5 ADDRESSING MODE...................................................................................................... 26 2.5.1 IMMEDIATE ADDRESSING MODE.......................................................................... 26 2.5.2 ........................................................................................................................................ 26 2.5.3 DIRECTLY ADDRESSING MODE ............................................................................ 26 2.5.4 ........................................................................................................................................ 26 2.5.5 INDIRECTLY ADDRESSING MODE ........................................................................ 26 2.6 STACK OPERATIONS..................................................................................................... 27 2.6.1 OVERVIEW............................................................................................................... 27 2.6.2 STACK REGISTERS ................................................................................................ 28 2.6.3 STACK OPERATION EXAMPLE .............................................................................. 29 |
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