HD6473937W Просмотр технического описания (PDF) - Hitachi -> Renesas Electronics

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HD6473937W

Hardware Manual

Hitachi -> Renesas Electronics 

2.8 Memory Map...................................................................................................................... 47

2.9 Application Notes............................................................................................................... 50

2.9.1 Notes on Data Access ........................................................................................... 50

2.9.2 Notes on Bit Manipulation .................................................................................... 52

2.9.3 Notes on Use of the EEPMOV Instruction ........................................................... 58

Section 3 Exception Handling ........................................................................................ 59

3.1 Overview ............................................................................................................................ 59

3.2 Reset................................................................................................................................... 59

3.2.1 Overview............................................................................................................... 59

3.2.2 Reset Sequence ..................................................................................................... 59

3.2.3 Interrupt Immediately after Reset ......................................................................... 60

3.3 Interrupts ............................................................................................................................ 61

3.3.1 Overview............................................................................................................... 61

3.3.2 Interrupt Control Registers ................................................................................... 63

3.3.3 External Interrupts................................................................................................. 72

3.3.4 Internal Interrupts.................................................................................................. 73

3.3.5 Interrupt Operations .............................................................................................. 74

3.3.6 Interrupt Response Time....................................................................................... 79

3.4 Application Notes............................................................................................................... 80

3.4.1 Notes on Stack Area Use ...................................................................................... 80

3.4.2 Notes on Rewriting Port Mode Registers ............................................................. 81

3.4.3 Notes on Interrupt Request Flag Clearing Methods ............................................. 83

Section 4 Clock Pulse Generators ................................................................................. 85

4.1 Overview ............................................................................................................................ 85

4.1.1 Block Diagram ...................................................................................................... 85

4.1.2 System Clock and Subclock.................................................................................. 85

4.2 System Clock Generator .................................................................................................... 86

4.3 Subclock Generator ............................................................................................................ 89

4.4 Prescalers ........................................................................................................................... 91

4.5 Note on Oscillators............................................................................................................. 92

4.5.1 Definition of Oscillation Settling Standby Time .................................................. 92

4.5.2 Notes on Use of Crystal Oscillator Element

(Excluding Ceramic Oscillator Element) .............................................................. 94

Section 5 Power-Down Modes....................................................................................... 95

5.1 Overview ............................................................................................................................ 95

5.1.1 System Control Registers...................................................................................... 98

5.2 Sleep Mode......................................................................................................................... 103

5.2.1 Transition to Sleep Mode ...................................................................................... 103

5.2.2 Clearing Sleep Mode............................................................................................. 103

5.2.3 Clock Frequency in Sleep (Medium-Speed) Mode............................................... 104

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