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CONTENTS
CHAPTER 1 OUTLINE............................................................................................................................... 1
1.1 Features ....................................................................................................................................... 1
1.2 List of Part Numbers................................................................................................................... 4
1.3 Pin Configuration (Top View)..................................................................................................... 6
1.3.1 25-pin products............................................................................................................................... 6
1.3.2 32-pin products............................................................................................................................... 7
1.3.3 48-pin products............................................................................................................................... 8
1.3.4 64-pin products............................................................................................................................. 10
1.4 Pin Identification ....................................................................................................................... 12
1.5 Block Diagram ........................................................................................................................... 13
1.5.1 25-pin products............................................................................................................................. 13
1.5.2 32-pin products............................................................................................................................. 14
1.5.3 48-pin products............................................................................................................................. 15
1.5.4 64-pin products............................................................................................................................. 16
1.6 Outline of Functions ................................................................................................................. 17
CHAPTER 2 PIN FUNCTIONS ............................................................................................................... 19
2.1 Port Function............................................................................................................................. 19
2.1.1 25-pin products............................................................................................................................. 20
2.1.2 32-pin products............................................................................................................................. 22
2.1.3 48-pin products............................................................................................................................. 24
2.1.4 64-pin products............................................................................................................................. 26
2.2 Functions Other than Port Pins ............................................................................................... 29
2.2.1 With functions for each product .................................................................................................... 29
2.2.2 Explanation of function.................................................................................................................. 33
2.3 Pin I/O Circuits and Recommended Connection of Unused Pins........................................ 35
2.4 Block Diagrams of Pins ............................................................................................................ 36
CHAPTER 3 CPU ARCHITECTURE ...................................................................................................... 47
3.1 Memory Space........................................................................................................................... 47
3.1.1 Internal program memory space................................................................................................... 54
3.1.2 Mirror area .................................................................................................................................... 57
3.1.3 Internal data memory space ......................................................................................................... 59
3.1.4 Special function register (SFR) area............................................................................................. 60
3.1.5 Extended special function register (2nd SFR: 2nd Special Function Register) area..................... 60
3.1.6 Data memory addressing.............................................................................................................. 61
3.2 Processor Registers ................................................................................................................. 62
3.2.1 Control registers ........................................................................................................................... 62
3.2.2 General-purpose registers ............................................................................................................ 64
3.2.3 ES and CS registers ..................................................................................................................... 65
3.2.4 Special function registers (SFRs) ................................................................................................. 66
3.2.5 Extended special function registers (2nd SFRs)........................................................................... 72
Index-1