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MITSUBISHI MICROCOMPUTERS
M37280MF–XXXSP, M37280MK–XXXSP
M37280EKSP
SINGLE-CHIP 8-BIT CMOS MICROCOMPUTER with CLOSED CAPTION DECODER
and ON-SCREEN DISPLAY CONTROLLER
TABLE OF CONTENTS
8. PIN CONFIGURATION ................................................................................................................................................................................... 3
9. FUNCTIONAL BLOCK DIAGRAM .................................................................................................................................................................. 4
10. PERFORMANCE OVERVIEW ...................................................................................................................................................................... 5
11. PIN DESCRIPTION ....................................................................................................................................................................................... 7
12. FUNCTIONAL DESCRIPTION .................................................................................................................................................................... 12
12.1 CENTRAL PROCESSING UNIT (CPU) ........................................................................................................................................... 12
12.2 MEMORY ......................................................................................................................................................................................... 13
12.3 INTERRUPTS .................................................................................................................................................................................. 21
12.4 TIMERS ............................................................................................................................................................................................ 26
12.5 SERIAL I/O ....................................................................................................................................................................................... 30
12.6 MULTI-MASTER I
2
C-BUS INTERFACE .......................................................................................................................................... 33
12.7 PWM OUTPUT CIRCUIT ................................................................................................................................................................. 46
12.8 A-D CONVERTER ............................................................................................................................................................................ 50
12.9 ROM CORRECTION FUNCTION .................................................................................................................................................... 54
12.10 DATA SLICER ................................................................................................................................................................................ 55
12.11 OSD FUNCTIONS .......................................................................................................................................................................... 66
13. SOFTWARE RUNAWAY DETECT FUNCTION ......................................................................................................................................... 117
14. RESET CIRCUIT ........................................................................................................................................................................................ 118
15. CLOCK GENERATING CIRCUIT............................................................................................................................................................... 119
15.1 OSCILLATION CONTROL .............................................................................................................................................................. 119
16. DISPLAY OSCILLATION CIRCUIT ........................................................................................................................................................... 122
17. AUTO-CLEAR CIRCUIT............................................................................................................................................................................ 122
18. ADDRESSING MODE ............................................................................................................................................................................... 122
19. MACHINE INSTRUCTIONS ..................................................................................................................................................................... 122
20. PROGRAMMING NOTES ......................................................................................................................................................................... 122
21. ABSOLUTE MAXIMUM RATINGS ............................................................................................................................................................ 123
22. RECOMMENDED OPERATING CONDITIONS ........................................................................................................................................ 123
23. ELECTRIC CHARACTERISTICS ............................................................................................................................................................. 124
24. ANALOG R, G, B OUTPUT CHARACTERISTICS .................................................................................................................................... 126
25. A-D CONVERETER CHARACTERISTICS ............................................................................................................................................... 126
26. MULTI-MASTER I
2
C-BUS BUS LINE CHARACTERISTICS .................................................................................................................... 127
27. DATA REQUIRED FOR MASK ORDERS ................................................................................................................................................. 128
28. PROM PROGRAMMING METHOD .......................................................................................................................................................... 128
29. MASK CONFIRMATION FORM ................................................................................................................................................................ 129
30. MARK SPECIFICATION FORM ................................................................................................................................................................ 135
31. APPENDIX ................................................................................................................................................................................................ 136
32. PACKAGE OUTLINE ................................................................................................................................................................................ 176
Rev. 1.0
2
RENESAS [ RENESAS TECHNOLOGY CORP ]
