SN8F27E64LKB datasheet(3/192 Pages) SONIX

3 / 192 page

SN8F27E60 Series

8-Bit Flash Micro-Controller with Embedded ICE and ISP

SONiX TECHNOLOGY CO., LTD

Page 3

Version 1.4

Table of Content

AMENDENT HISTORY................................................................................................................................ 2

11 PRODUCT OVERVIEW.............................................................................................................................. 8

1.1 FEATURES .............................................................................................................................................. 8

1.2 SYSTEM BLOCK DIAGRAM .............................................................................................................. 10

1.3 PIN ASSIGNMENT ............................................................................................................................... 11

1.4 PIN DESCRIPTIONS ............................................................................................................................. 13

1.5 PIN CIRCUIT DIAGRAMS ................................................................................................................... 14

22 CENTRAL PROCESSOR UNIT (CPU) ................................................................................................... 16

2.1 PROGRAM MEMORY (FLASH ROM)................................................................................................ 16

2.1.1 RESET VECTOR (0000H) ............................................................................................................. 17

2.1.2 INTERRUPT VECTOR (0008H~0014H)....................................................................................... 18

2.1.3 LOOK-UP TABLE DESCRIPTION............................................................................................... 20

2.1.4 JUMP TABLE DESCRIPTION ...................................................................................................... 22

2.1.5 CHECKSUM CALCULATION...................................................................................................... 24

2.2 DATA MEMORY (RAM) ...................................................................................................................... 25

2.2.1 SYSTEM REGISTER ..................................................................................................................... 26

2.2.1.1 SYSTEM REGISTER TABLE ................................................................................................ 26

2.2.1.2 SYSTEM REGISTER DESCRIPTION ................................................................................... 26

2.2.1.3 BIT DEFINITION of SYSTEM REGISTER ........................................................................... 27

2.2.2 ACCUMULATOR .......................................................................................................................... 29

2.2.3 PROGRAM FLAG .......................................................................................................................... 30

2.2.4 PROGRAM COUNTER.................................................................................................................. 31

2.2.5 H, L REGISTERS............................................................................................................................ 34

2.2.6 X REGISTERS ................................................................................................................................ 35

2.2.7 Y, Z REGISTERS............................................................................................................................ 35

2.2.8 R REGISTER .................................................................................................................................. 36

2.2.9 W REGISTERS ............................................................................................................................... 37

2.3 ADDRESSING MODE........................................................................................................................... 38

2.3.1 IMMEDIATE ADDRESSING MODE ........................................................................................... 38

2.3.2 DIRECTLY ADDRESSING MODE .............................................................................................. 38

2.3.3 INDIRECTLY ADDRESSING MODE .......................................................................................... 38

2.4 STACK OPERATION............................................................................................................................ 39

2.4.1 OVERVIEW .................................................................................................................................... 39

2.4.2 STACK POINTER .......................................................................................................................... 39

2.4.3 STACK BUFFER ............................................................................................................................ 40

2.4.4 STACK OVERFLOW INDICATOR .............................................................................................. 40

2.4.5 STACK OPERATION EXAMPLE................................................................................................. 41

2.5 CODE OPTION TABLE ........................................................................................................................ 42

2.5.1 Fcpu Code Option............................................................................................................................ 43

2.5.2 Reset_Pin code option ..................................................................................................................... 43

2.5.3 Security code option ........................................................................................................................ 43

2.5.4 Noise Filter code option .................................................................................................................. 43

33 RESET .......................................................................................................................................................... 44

3.1 OVERVIEW ........................................................................................................................................... 44

3.2 POWER ON RESET............................................................................................................................... 45

3.3 WATCHDOG RESET ............................................................................................................................ 45

3.4 BROWN OUT RESET ........................................................................................................................... 45

3.4.1 THE SYSTEM OPERATING VOLTAGE ..................................................................................... 46

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