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FUJITSU F2MCTM-16LX User Manual

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CHAPTER 4

DELAYED INTERRUPT GENERATION MODULE .................................... 83

4.1

Overview of Delayed Interrupt Generation Module ........................................................................... 84

4.2

Block Diagram of Delayed Interrupt Generation Module .................................................................. 85

4.3

Configuration of Delayed Interrupt Generation Module .................................................................... 86

4.3.1

Delayed interrupt request generate/cancel register (DIRR) ........................................................ 87

4.4

Explanation of Operation of Delayed Interrupt Generation Module .................................................. 88

4.5

Precautions when Using Delayed Interrupt Generation Module ....................................................... 89

4.6

Program Example of Delayed Interrupt Generation Module ............................................................. 90

CHAPTER 5

CLOCKS ..................................................................................................... 91

5.1

Clocks ............................................................................................................................................... 92

5.2

Block Diagram of the Clock Generation Block .................................................................................. 95

5.2.1

Register of Clock Generation Block ............................................................................................. 97

5.3

Clock Selection Register (CKSCR) ................................................................................................... 98

5.4

PLL/Subclock Control Register (PSCCR) ....................................................................................... 101

5.5

Clock Mode ..................................................................................................................................... 103

5.6

Oscillation Stabilization Wait Interval .............................................................................................. 107

5.7

Connection of an Oscillator or an External Clock to the Microcontroller ......................................... 108

CHAPTER 6

CLOCK SUPERVISOR ............................................................................. 109

6.1

Overview of Clock Supervisor ......................................................................................................... 110

6.2

Block Diagram of Clock Supervisor ................................................................................................ 111

6.3

Clock Supervisor Control Register (CSVCR) .................................................................................. 113

6.4

Operating Mode of Clock Supervisor .............................................................................................. 115

CHAPTER 7

RESETS .................................................................................................... 119

7.1

Resets ............................................................................................................................................. 120

7.2

Reset Cause and Oscillation Stabilization Wait Times ................................................................... 123

7.3

External Reset Pin .......................................................................................................................... 125

7.4

Reset Operation .............................................................................................................................. 126

7.5

Reset Cause Bits ............................................................................................................................ 128

7.6

Status of Pins in a Reset ................................................................................................................ 132

CHAPTER 8

LOW-POWER CONSUMPTION MODE ................................................... 133

8.1

Overview of Low-Power Consumption Mode .................................................................................. 134

8.2

Block Diagram of the Low-Power Consumption Control Circuit ..................................................... 137

8.3

Low-Power Consumption Mode Control Register (LPMCR) ........................................................... 139

8.4

CPU Intermittent Operation Mode .................................................................................................. 142

8.5

Standby Mode ................................................................................................................................. 143

8.5.1

Sleep Mode ............................................................................................................................... 145

8.5.2

Watch Mode .............................................................................................................................. 148

8.5.3

Timebase Timer Mode ............................................................................................................... 150

8.5.4

Stop Mode ................................................................................................................................. 152

8.6

Status Change Diagram ................................................................................................................. 155

8.7

Status of Pins in Standby Mode and during Hold and Reset .......................................................... 156

8.8

Usage Notes on Low-Power Consumption Mode ........................................................................... 157