NEC mPD789101 User Manual page 12

8-bit single-chip microcontrollers
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4.2.1 Control registers .......................................................................................................................
4.2.2 General registers ......................................................................................................................
4.2.3 Special function registers (SFRs) ............................................................................................
4.3 Instruction Address Addressing ......................................................................................
4.3.1 Relative addressing ..................................................................................................................
4.3.2 Immediate addressing ..............................................................................................................
4.3.3 Table indirect addressing .........................................................................................................
4.3.4 Register addressing .................................................................................................................
4.4 Operand Address Addressing ..........................................................................................
4.4.1 Direct addressing .....................................................................................................................
4.4.2 Short direct addressing ............................................................................................................
4.4.3 Special function register (SFR) addressing ............................................................................
4.4.4 Register addressing .................................................................................................................
4.4.5 Register indirect addressing ....................................................................................................
4.4.6 Based addressing .....................................................................................................................
4.4.7 Stack addressing ......................................................................................................................
CHAPTER 5 PORT FUNCTIONS .....................................................................................................
5.1 Functions of Ports .............................................................................................................
5.2 Port Configuration .............................................................................................................
5.2.1 Port 0 ........................................................................................................................................
5.2.2 Port 1 ........................................................................................................................................
5.2.3 Port 2 ........................................................................................................................................
5.2.4 Port 5 ........................................................................................................................................
5.2.5 Port 6 ........................................................................................................................................
5.3 Port Function Control Registers ......................................................................................
5.4 Operation of Port Functions .............................................................................................
5.4.1 Writing to I/O port .....................................................................................................................
5.4.2 Reading from I/O port ..............................................................................................................
5.4.3 Arithmetic operation of I/O port ................................................................................................
6.1 Function of Clock Generator ............................................................................................
6.2 Configuration of Clock Generator ...................................................................................
6.3 Register Controlling Clock Generator ............................................................................
6.4 System Clock Oscillator ....................................................................................................
6.4.1 System clock oscillator .............................................................................................................
6.4.2 Divider .......................................................................................................................................
6.5 Operation of Clock Generator ..........................................................................................
6.6 Changing Setting of CPU Clock .......................................................................................
6.6.1 Time required for switching CPU clock ...................................................................................
6.6.2 Switching CPU clock ................................................................................................................
7.1 Function of Clock Generator ............................................................................................
7.2 Configuration of Clock Generator ...................................................................................
7.3 Register Controlling Clock Generator ............................................................................
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User's Manual U13045EJ2V0UM00
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