Table of Contents
CHAPTER 1 OUTLINE .................................................................................................. 19
1.1 Features .......................................................................................................................................... 19
1.2 List of Part Numbers ....................................................................................................................... 22
1.3 Pin Configuration (Top View) .......................................................................................................... 24
1.3.1 8-pin products ...................................................................................................................... 24
1.3.2 10-pin products .................................................................................................................... 25
1.3.3 16-pin products .................................................................................................................... 26
1.3.4 20-pin products .................................................................................................................... 29
1.4 Pin Identification ............................................................................................................................. 31
1.5 Block Diagram ................................................................................................................................ 32
1.5.1 8-pin products ...................................................................................................................... 32
1.5.2 10-pin products .................................................................................................................... 33
1.5.3 16-pin products .................................................................................................................... 34
1.5.4 20-pin products .................................................................................................................... 35
1.6 Outline of Functions ........................................................................................................................ 36
CHAPTER 2 PIN FUNCTIONS ...................................................................................... 38
2.1 Port Function .................................................................................................................................. 38
2.1.1 8-pin products ...................................................................................................................... 38
2.1.2 10-pin products .................................................................................................................... 39
2.1.3 16-pin products .................................................................................................................... 40
2.1.4 20-pin products .................................................................................................................... 41
2.2 Functions other than port pins ........................................................................................................ 43
2.2.1 Functions for each product .................................................................................................. 43
2.2.2 Pins for each product (pins other than port pins) ................................................................. 44
2.3 Connection of Unused Pins ............................................................................................................ 45
2.4 Block Diagrams of Pins................................................................................................................... 46
CHAPTER 3 CPU ARCHITECTURE ............................................................................. 55
3.1 Overview ......................................................................................................................................... 55
3.2 Memory Space ................................................................................................................................ 56
3.2.1 Internal program memory space .......................................................................................... 59
3.2.2 Mirror area ............................................................................................................................ 62
3.2.3 Internal data memory space ................................................................................................ 63
3.2.4 Special function register (SFR) area .................................................................................... 63
3.2.5 Extended special function register (2nd SFR: 2nd Special Function Register) area ........... 63
3.2.6 Data memory addressing ..................................................................................................... 64
3.3 Processor Registers ....................................................................................................................... 65
3.3.1 Control registers ................................................................................................................... 65
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