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User’s Manual U13655EJ2V1UD
CONTENTS
CHAPTER 1 GENERAL........................................................................................................................... 25
1.1
1.2
1.3
1.4
1.5
1.6
1.7
1.8
Features......................................................................................................................................... 25
Application Fields......................................................................................................................... 26
Ordering Information.................................................................................................................... 26
Quality Grade ................................................................................................................................ 26
Pin Configuration (Top View) ...................................................................................................... 27
78K/0 Series Lineup...................................................................................................................... 29
Block Diagram............................................................................................................................... 32
Overview of Functions ................................................................................................................. 33
CHAPTER 2 PIN FUNCTIONS ............................................................................................................... 35
2.1
2.2
2.3
Pin Function List........................................................................................................................... 35
Description of Pin Functions....................................................................................................... 39
Pin I/O Circuits and Recommended Connection of Unused Pins ........................................... 46
CHAPTER 3 CPU ARCHITECTURE...................................................................................................... 49
3.1
Memory Space............................................................................................................................... 49
3.1.1
Internal program memory space ...................................................................................................... 51
3.1.2
Internal data memory space............................................................................................................. 52
3.1.3
Special-function register (SFR) area................................................................................................ 52
3.1.4
Data memory addressing................................................................................................................. 53
Processor Registers..................................................................................................................... 55
3.2.1
Control registers............................................................................................................................... 55
3.2.2
General-purpose registers ............................................................................................................... 58
3.2.3
Special-function registers (SFRs) .................................................................................................... 59
Addressing Instruction Address................................................................................................. 64
3.3.1
Relative addressing ......................................................................................................................... 64
3.3.2
Immediate addressing...................................................................................................................... 65
3.3.3
Table indirect addressing................................................................................................................. 66
3.3.4
Register addressing......................................................................................................................... 67
Addressing of Operand Address ................................................................................................ 68
3.4.1
Implied addressing........................................................................................................................... 68
3.4.2
Register addressing......................................................................................................................... 69
3.4.3
Direct addressing............................................................................................................................. 70
3.4.4
Short direct addressing.................................................................................................................... 71
3.4.5
Special-function register (SFR) addressing...................................................................................... 72
3.4.6
Register indirect addressing............................................................................................................. 73
3.4.7
Based addressing ............................................................................................................................ 74
3.4.8
Based indexed addressing............................................................................................................... 75
3.4.9
Stack addressing ............................................................................................................................. 75
3.2
3.3
3.4
CHAPTER 4 PORT FUNCTIONS ........................................................................................................... 76
4.1
Port Functions............................................................................................................................... 76