M32CSLASH86 datasheet(6/505 Pages) RENESAS

6 / 505 page

A-2

7. Processor Mode ______________________________ 49

7.1 Types of Processor Mode ........................................................................................ 49

7.2 Setting of Processor Mode ...................................................................................... 50

8. Bus_________________________________________ 54

8.1 Bus Settings ............................................................................................................. 54

8.1.1 Selecting External Address Bus ...................................................................... 55

8.1.2 Selecting External Data Bus ............................................................................ 55

8.1.3 Selecting Separate/Multiplexed Bus ............................................................... 55

8.2 Bus Control ............................................................................................................... 57

8.2.1 Address Bus and Data Bus .............................................................................. 57

8.2.2 Chip-Select Signal ............................................................................................ 57

8.2.3 Read and Write Signals .................................................................................... 59

8.2.4 Bus Timing ........................................................................................................ 60

8.2.5 ALE Signal ......................................................................................................... 68

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8.2.6 RDY Signal ......................................................................................................... 68

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8.2.7 HOLD Signal ...................................................................................................... 70

8.2.8 External Bus Status when Accessing Internal Space ................................... 70

8.2.9 BCLK Output ..................................................................................................... 70

9. Clock Generation Circuit _______________________ 71

9.1 Types of the Clock Generation Circuit ................................................................... 71

9.1.1 Main Clock ......................................................................................................... 80

9.1.2 Sub Clock .......................................................................................................... 81

9.1.3 On-Chip Oscillator Clock ................................................................................. 82

9.1.4 PLL Clock .......................................................................................................... 84

9.2 CPU Clock and BCLK .............................................................................................. 85

9.3 Peripheral Function Clock ....................................................................................... 85

9.3.1 f1, f8, f32 and f2n ......................................................................................................................... 85

9.3.2 fAD .................................................................................................................................................... 85

9.3.3 fC32 ................................................................................................................................................... 86

9.3.4 fCAN .................................................................................................................................................. 86

9.4 Clock Output Function ............................................................................................ 86

9.5 Power Consumption Control .................................................................................. 87

9.5.1 Normal Operating Mode ................................................................................... 87

9.5.2 Wait Mode .......................................................................................................... 88

9.5.3 Stop Mode .......................................................................................................... 90

9.6 System Clock Protect Function .............................................................................. 95

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