UPD784020 Datasheet, PDF (5/90 Pages) NEC – 16/8-BIT SINGLE-CHIP MICROCOMPUTER

mPD784020, 784021
10. LOCAL BUS INTERFACE ......................................................................................................... 49
10.1 MEMORY EXPANSION .................................................................................................................. 49
10.2 MEMORY SPACE ........................................................................................................................... 50
10.3 PROGRAMMABLE WAIT ............................................................................................................... 51
10.4 PSEUDO-STATIC RAM REFRESH FUNCTION ........................................................................... 51
10.5 BUS HOLD FUNCTION .................................................................................................................. 51
11. STANDBY FUNCTION .............................................................................................................. 52
12. RESET FUNCTION .................................................................................................................... 53
13. INSTRUCTION SET ................................................................................................................... 54
14. ELECTRICAL CHARACTERISTICS ......................................................................................... 59 H
15. PACKAGE DRAWINGS ............................................................................................................ 80
16. RECOMMENDED SOLDERING CONDITIONS ........................................................................ 82 _H
APPENDIX A DEVELOPMENT TOOLS ........................................................................................ 83
APPENDIX B RELATED DOCUMENTS ....................................................................................... 85
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