M38203M4 Datasheet, PDF (7/344 Pages) Mitsubishi Electric Semiconductor – 8-BIT SINGLE-CHIP MICROCOMPUTER

Table of contents
LCD DRIVE CONTROL CIRCUIT .............................................................................................. 1-32
Bias Control and Applied Voltage to LCD Power Input Pins .................................................. 1-34
Common Pin and Duty Ratio Control ..................................................................................... 1-34
LCD Display RAM ...................................................................................................................1-35
LCD Drive Timing ...................................................................................................................1-35
WATCHDOG TIMER .................................................................................................................... 1-38
Initial Value of Watchdog Timer.............................................................................................. 1-38
Watchdog Timer Operation .................................................................................................... 1-38
φ CLOCK OUTPUT FUNCTION .................................................................................................1-39
RESET CIRCUIT .......................................................................................................................... 1-40
CLOCK GENERATING CIRCUIT ............................................................................................... 1-42
Frequency Control ..................................................................................................................1-42
Oscillation Control ..................................................................................................................1-42
NOTES ON PROGRAMMING ..................................................................................................... 1-45
Processor Status Register ...................................................................................................... 1-45
Interrupt .................................................................................................................................. 1-45
Decimal Calculations .............................................................................................................. 1-45
Timers..................................................................................................................................... 1-45
Multiplication and Division Instructions ................................................................................... 1-45
Ports .......................................................................................................................................1-45
Serial I/O................................................................................................................................. 1-45
Instruction Execution Time ..................................................................................................... 1-45
DATA REQUIRED FOR MASK ORDERS ................................................................................ 1-46
ROM PROGRAMMIG METHOD ................................................................................................. 1-46
Absolute maximum ratings ....................................................................................................... 1-47
Recommended operating conditions ...................................................................................... 1-47
Electrical characteristics ........................................................................................................... 1-49
Timing requirements 1 .............................................................................................................. 1-51
Timing requirements 2 .............................................................................................................. 1-51
Switching characteristics 1 ...................................................................................................... 1-52
Switching characteristics 2 ...................................................................................................... 1-52
Absolute maximum ratings (Extended operating temperature version) .......................... 1-53
Recommended operating conditions (Extended operating temperature version) .......................................... 1-53
Electrical characteristics (Extended operating temperature version) ............................... 1-55
Timing requirements 1 (Extended operating temperature version) .................................. 1-57
Timing requirements 2 (Extended operating temperature version) .................................. 1-57
Switching characteristics 1 (Extended operating temperature version) .......................... 1-58
Switching characteristics 2 (Extended operating temperature version) .......................... 1-58
Absolute maximum ratings (Low power source voltage version) ................................... 1-59
Recommended operating conditions (Low power source voltage version) ....................................................1-59
Electrical characteristics (Low power source voltage version) ........................................ 1-61
Timing requirements 1 (Low power source voltage version) ........................................... 1-63
Timing requirements 2 (Low power source voltage version) ........................................... 1-63
Switching characteristics 1 (Low power source voltage version) ................................... 1-64
Switching characteristics 2 (Low power source voltage version) ................................... 1-64
Timing diagram ........................................................................................................................... 1-65
STANDARD CHARACTERISTICS .............................................................................................. 1-66
Power Source Current Characteristic Examples (ICC–VCC characteristics) ............................ 1-66
Power Source Frequency Characteristic Examples .................................................................. 1-68
Port Standard Characteristic Examples ...................................................................................... 1-69
3820 GROUP USER’S MANUAL
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