3825_03 Datasheet, PDF (7/339 Pages) Renesas Technology Corp – 8-BIT SINGLE-CHIP MICROCOMPUTER

Table of contents
A-D CONVERTER ........................................................................................................................ 1-28
A-D Conversion Register (AD) 003516 ........................................................................................................ 1-28
A-D Control Register (ADCON) 003416 ...................................................................................................... 1-28
Comparison Voltage Generator .............................................................................................. 1-28
Channel Selector ....................................................................................................................1-28
Comparator and Control Circuit .............................................................................................. 1-28
LCD DRIVE CONTROL CIRCUIT .............................................................................................. 1-29
Voltage Multiplier (3 Times) .................................................................................................... 1-31
Bias Control and Applied Voltage to LCD Power Input Pins .................................................. 1-31
Common Pin and Duty Ratio Control ..................................................................................... 1-31
LCD Display RAM ...................................................................................................................1-32
LCD Drive Timing ...................................................................................................................1-32
CLOCK OUTPUT FUNCTION ..................................................................................................... 1-35
Selection of Input/Output Ports and Clock Output Function ................................................... 1-35
Selection of Output Clock Frequency ..................................................................................... 1-35
RESET CIRCUIT .......................................................................................................................... 1-36
CLOCK GENERATING CIRCUIT ............................................................................................... 1-38
Frequency Control ..................................................................................................................1-38
Oscillation Control ..................................................................................................................1-38
NOTES ON PROGRAMMING ..................................................................................................... 1-41
Processor Status Register ...................................................................................................... 1-41
Interrupt .................................................................................................................................. 1-41
Decimal Calculations .............................................................................................................. 1-41
Timers ..................................................................................................................................... 1-41
Multiplication and Division Instructions ................................................................................... 1-41
Ports .......................................................................................................................................1-41
Serial I/O ................................................................................................................................. 1-41
A-D Converter ......................................................................................................................... 1-41
Instruction Execution Time ..................................................................................................... 1-41
DATA REQUIRED FOR MASK ORDERS ................................................................................ 1-42
ROM PROGRAMMIG METHOD ............................................................................................... 1-42
ABSOLUTE MAXIMUM RATINGS ............................................................................................. 1-43
RECOMMENDED OPERATING CONDITIONS .......................................................................... 1-43
ELECTRICAL CHARACTERISTICS ............................................................................................ 1-45
A-D CONVERTER CHARACTERISTICS ................................................................................... 1-47
TIMING REQUIREMENTS 1 ....................................................................................................... 1-48
TIMING REQUIREMENTS 2 ....................................................................................................... 1-48
SWITCHING CHARACTERISTICS 1 .......................................................................................... 1-49
SWITCHING CHARACTERISTICS 2 .......................................................................................... 1-49
ABSOLUTE MAXIMUM RATINGS (Extended Operating Temperature Version) ............... 1-50
RECOMMENDED OPERATING CONDITIONS (Extended Operating Temperature Version) .............................. 1-50
ELECTRICAL CHARACTERISTICS (Extended Operating Temperature Version) ............. 1-52
A-D CONVERTER CHARACTERISTICS (Extended Operating Temperature Version) ..... 1-53
TIMING REQUIREMENTS 1 (Extended Operating Temperature Version) ......................... 1-54
TIMING REQUIREMENTS 2 (Extended Operating Temperature Version) ......................... 1-54
SWITCHING CHARACTERISTICS 1 (Extended Operating Temperature Version) ........... 1-55
SWITCHING CHARACTERISTICS 2 (Extended Operating Temperature Version) ........... 1-55
TIMING DIAGRAM ....................................................................................................................... 1-56
CHAPTER 2. APPLICATION
2.1 I/O pins .................................................................................................................................... 2-2
2.1.1 I/O ports ........................................................................................................................... 2-2
2.1.2 Function pins ...................................................................................................................2-7
2.1.3 Application examples.......................................................................................................2-8
2.1.4 Notes on use ................................................................................................................. 2-12
3825 GROUP USER’S MANUAL
ii