R5F7142 Просмотр технического описания (PDF) - Renesas Electronics

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R5F7142

Renesas 32-Bit RISC Microcomputer SuperH™ RISC engine Family

Renesas Electronics 

3.3.2 Mode 2 (MCU Extension Mode 2) ..................................................................... 51

3.3.3 Mode 3 (Single Chip Mode) ............................................................................... 51

3.4 Address Map....................................................................................................................... 52

3.5 Initial State in This LSI....................................................................................................... 56

3.6 Note on Changing Operating Mode.................................................................................... 56

Section 4 Clock Pulse Generator (CPG) .............................................................57

4.1 Features............................................................................................................................... 57

4.2 Input/Output Pins................................................................................................................ 61

4.3 Clock Operating Mode........................................................................................................ 62

4.4 Register Descriptions.......................................................................................................... 66

4.4.1 Frequency Control Register (FRQCR) ............................................................... 66

4.4.2 Oscillation Stop Detection Control Register (OSCCR) ...................................... 69

4.5 Changing Frequency ........................................................................................................... 70

4.6 Oscillator ............................................................................................................................ 71

4.6.1 Connecting Crystal Resonator ............................................................................ 71

4.6.2 External Clock Input Method.............................................................................. 72

4.7 Function for Detecting Oscillator Stop ............................................................................... 73

4.8 Usage Notes ........................................................................................................................ 74

4.8.1 Note on Crystal Resonator .................................................................................. 74

4.8.2 Notes on Board Design ....................................................................................... 74

Section 5 Exception Handling .............................................................................77

5.1 Overview ............................................................................................................................ 77

5.1.1 Types of Exception Handling and Priority ......................................................... 77

5.1.2 Exception Handling Operations .......................................................................... 78

5.1.3 Exception Handling Vector Table....................................................................... 79

5.2 Resets.................................................................................................................................. 81

5.2.1 Types of Resets................................................................................................... 81

5.2.2 Power-On Reset .................................................................................................. 81

5.2.3 Manual Reset ...................................................................................................... 82

5.3 Address Errors .................................................................................................................... 83

5.3.1 Address Error Sources ........................................................................................ 83

5.3.2 Address Error Exception Source......................................................................... 84

5.4 Interrupts............................................................................................................................. 85

5.4.1 Interrupt Sources................................................................................................. 85

5.4.2 Interrupt Priority ................................................................................................. 86

5.4.3 Interrupt Exception Handling ............................................................................. 86

5.5 Exceptions Triggered by Instructions ................................................................................. 87

5.5.1 Types of Exceptions Triggered by Instructions .................................................. 87

Rev. 3.00 Oct. 06, 2008 Page viii of xxiv

REJ09B0230-0300

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