M32CSLASH8B datasheet(9/406 Pages) RENESAS

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8.2.1

Address Bus and Data Bus ................................................................................................................. 47

8.2.2

Chip-Select Output ............................................................................................................................. 47

8.2.3

Read/Write Output Signals ................................................................................................................. 49

8.2.4

Bus Timing ......................................................................................................................................... 50

8.2.5

ALE Output ........................................................................................................................................ 58

8.2.6

RDY Input ............................................................................................................................................ 58

8.2.7

HOLD Input ........................................................................................................................................ 59

8.2.8

External Bus States when Accessing Internal Space .......................................................................... 60

8.2.9

BCLK Output ..................................................................................................................................... 60

8.3

Page Mode Control Function .................................................................................................................. 61

Clock Generation Circuits ............................................................................................................. 65

9.1

Types of the Clock Generation Circuit ................................................................................................... 65

9.1.1

Main Clock ......................................................................................................................................... 75

9.1.2

Sub Clock ........................................................................................................................................... 76

9.1.3

On-Chip Oscillator Clock ................................................................................................................... 77

9.1.4

PLL Clock ........................................................................................................................................... 79

9.2

CPU Clock and BCLK ............................................................................................................................ 81

9.3

Peripheral Function Clock ....................................................................................................................... 81

9.3.1

f1, f8, f32, and f2n .............................................................................................................................. 81

9.3.2

fAD ..................................................................................................................................................... 81

9.3.3

fC32 .................................................................................................................................................... 81

9.4

Clock Output Function ............................................................................................................................ 82

9.5

Power Consumption Control .................................................................................................................. 83

9.5.1

CPU operating mode .......................................................................................................................... 83

9.5.2

Wait Mode .......................................................................................................................................... 87

9.5.3

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

9.6

System Clock Protect Function ............................................................................................................... 93

10.

Protection ...................................................................................................................................... 94

11.

Interrupts ....................................................................................................................................... 95

11.1

Types of Interrupts .................................................................................................................................. 95

11.2

Software Interrupts .................................................................................................................................. 96

11.2.1

Undefined Instruction Interrupt .......................................................................................................... 96

11.2.2

Overflow Interrupt .............................................................................................................................. 96

11.2.3

BRK Interrupt ..................................................................................................................................... 96

11.2.4

BRK2 Interrupt ................................................................................................................................... 96

11.2.5

INT Instruction Interrupt .................................................................................................................... 96

11.3

Hardware Interrupts ................................................................................................................................ 97

11.3.1

Special Interrupts ................................................................................................................................ 97

11.3.2

Peripheral Function Interrupt .............................................................................................................. 97

11.4

High-Speed Interrupt ............................................................................................................................... 98

11.5

Interrupts and Interrupt Vectors .............................................................................................................. 99

11.5.1

Fixed Vector Table ............................................................................................................................. 99

11.5.2

Relocatable Vector Table ................................................................................................................... 99

11.6

Interrupt Request Acknowledgement .................................................................................................... 102

11.6.1

I Flag and IPL ................................................................................................................................... 102

11.6.2

Interrupt Control Registers and RLVL Register ............................................................................... 102

11.6.3

Interrupt Sequence ............................................................................................................................ 106

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