M32C80 Datasheet, PDF (6/352 Pages) Renesas Technology Corp – 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES

7. Bus_________________________________________ 39
7.1 Bus Settings ............................................................................................................. 39
7.1.1 Selecting External Address Bus ...................................................................... 40
7.1.2 Selecting External Data Bus ............................................................................ 40
7.1.3 Selecting Separate/Multiplexed Bus ............................................................... 40
7.2 Bus Control ............................................................................................................... 42
7.2.1 Address Bus and Data Bus .............................................................................. 42
7.2.2 Chip-Select Signal ............................................................................................ 42
7.2.3 Read and Write Signals .................................................................................... 44
7.2.4 Bus Timing ........................................................................................................ 45
7.2.5 ALE Signal ......................................................................................................... 53
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7.2.6 RDY Signal ......................................................................................................... 53
7.2.8 External Bus Status when Accessing Internal Space ................................... 55
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7.2.7 HOLD Signal ...................................................................................................... 55
7.2.9 BCLK Output ..................................................................................................... 55
8. Clock Generation Circuit _______________________ 56
8.1 Types of the Clock Generation Circuit ................................................................... 56
8.1.1 Main Clock ......................................................................................................... 65
8.1.2 Sub Clock .......................................................................................................... 66
8.1.3 On-Chip Oscillator Clock ................................................................................. 67
8.1.4 PLL Clock .......................................................................................................... 69
8.2 CPU Clock and BCLK .............................................................................................. 70
8.3 Peripheral Function Clock ....................................................................................... 70
8.3.1 f1, f8, f32 and f2n ......................................................................................................................... 70
8.3.2 fAD .................................................................................................................................................... 70
8.3.3 fC32 ................................................................................................................................................... 71
8.4 Clock Output Function ............................................................................................ 71
8.5 Power Consumption Control .................................................................................. 72
8.5.1 Normal Operating Mode ................................................................................... 72
8.5.2 Wait Mode .......................................................................................................... 73
8.5.3 Stop Mode .......................................................................................................... 75
8.6 System Clock Protect Function .............................................................................. 80
9. Protection ___________________________________ 81
10. Interrupts___________________________________ 82
10.1 Types of Interrupts ................................................................................................. 82
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