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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