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User’s Manual U16228EJ2V0UD
11
3.2 Processor Registers.................................................................................................................. 68
3.2.1
Control registers.............................................................................................................................68
3.2.2
General-purpose registers..............................................................................................................72
3.2.3
Special Function Registers (SFRs).................................................................................................73
3.3 Instruction Address Addressing.............................................................................................. 78
3.3.1
Relative addressing........................................................................................................................78
3.3.2
Immediate addressing ....................................................................................................................79
3.3.3
Table indirect addressing ...............................................................................................................80
3.3.4
Register addressing........................................................................................................................80
3.4 Operand Address Addressing.................................................................................................. 81
3.4.1
Implied addressing .........................................................................................................................81
3.4.2
Register addressing........................................................................................................................82
3.4.3
Direct addressing............................................................................................................................83
3.4.4
Short direct addressing...................................................................................................................84
3.4.5
Special function register (SFR) addressing ....................................................................................85
3.4.6
Register indirect addressing...........................................................................................................86
3.4.7
Based addressing...........................................................................................................................87
3.4.8
Based indexed addressing .............................................................................................................88
3.4.9
Stack addressing............................................................................................................................89
CHAPTER 4 PORT FUNCTIONS........................................................................................................... 90
4.1 Port Functions............................................................................................................................ 90
4.2 Port Configuration..................................................................................................................... 92
4.2.1
Port 0..............................................................................................................................................93
4.2.2
Port 1..............................................................................................................................................97
4.2.3
Port 2............................................................................................................................................102
4.2.4
Port 3............................................................................................................................................103
4.2.5
Port 4............................................................................................................................................105
4.2.6
Port 5............................................................................................................................................106
4.2.7
Port 6............................................................................................................................................107
4.2.8
Port 7............................................................................................................................................108
4.2.9
Port 12..........................................................................................................................................109
4.2.10 Port 13..........................................................................................................................................110
4.2.11 Port 14..........................................................................................................................................111
4.3 Registers Controlling Port Function...................................................................................... 112
4.4 Port Function Operations........................................................................................................ 116
4.4.1
Writing to I/O port .........................................................................................................................116
4.4.2
Reading from I/O port...................................................................................................................116
4.4.3
Operations on I/O port..................................................................................................................116
CHAPTER 5 CLOCK GENERATOR.................................................................................................... 117
5.1 Functions of Clock Generator ................................................................................................ 117
5.2 Configuration of Clock Generator.......................................................................................... 117
5.3 Registers Controlling Clock Generator................................................................................. 119
5.4 System Clock Oscillator.......................................................................................................... 126