7751 datasheet(10/540 Pages) RENESAS

10 / 540 page

Table of Contents

vii

7751 Group User’s Manual

CHAPTER 18. PROM VERSION

18.1 EPROM mode ..................................................................................................................... 18-3

18.1.1 Pin description ........................................................................................................... 18-3

18.1.2 Programming/reading to/from built-in PROM .......................................................... 18-4

18.1.3 Programming algorithm of built-in PROM ............................................................... 18-7

18.1.4 Electrical characteristics of programming algorithm .............................................. 18-9

18.2 Usage precaution ............................................................................................................ 18-10

18.2.1 Precautions on all PROM versions ....................................................................... 18-10

18.2.2 Precautions on one time PROM version .............................................................. 18-11

18.2.3 Precautions on EPROM version ............................................................................ 18-11

CHAPTER 19. FLASH MEMORY VERSION

19.1 Parallel input/output mode ............................................................................................. 19-3

19.1.1 Pin description ........................................................................................................... 19-4

19.1.2 Access to built–in flash memory ............................................................................. 19-5

19.1.3 Read–only mode ........................................................................................................ 19-7

19.1.4 Read/write (software command control) mode ...................................................... 19-9

19.1.5 Electrical characteristics ......................................................................................... 19-18

19.1.6 Program/erase algorithm flow chart ...................................................................... 19-20

19.2 Serial input/output mode ............................................................................................... 19-21

19.2.1 Pin description ......................................................................................................... 19-21

19.2.2 Access to built–in flash memory ........................................................................... 19-23

19.2.3 Electrical characteristics ......................................................................................... 19-31

19.2.4 Program algorithm flow chart ................................................................................. 19-33

APPENDIX

Appendix 1. Memory assignment ........................................................................................... 20-2

Appendix 2. Memory assignment in SFR area ................................................................... 20-5

Appendix 3. Control registers ................................................................................................. 20-9

Appendix 4. Package outlines .............................................................................................. 20-32

Appendix 5. Example for processing unused pins .......................................................... 20-34

Appendix 6. Hexadecimal instruction code table ............................................................. 20-37

Appendix 7. Machine instructions ....................................................................................... 20-40

Appendix 8. Examples of noise immunity improvement ................................................ 20-61

Appendix 9. Q & A .................................................................................................................. 20-71

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