TABLE OF CONTENTS

III PERIPHERAL BLOCK

 

III-1

INTRODUCTION ............................................................................................

B-III-1-1

III-2

PRESCALER .................................................................................................

B-III-2-1

 

Configuration of Prescaler..............................................................................................................................

B-III-2-1

 

Source Clock.......................................................................................................................................................

B-III-2-1

 

Selecting Division Ratio and Output Control for Prescaler...............................................................

B-III-2-2

 

Source Clock Output to 8-Bit Programmable Timer .............................................................................

B-III-2-2

 

I/O Memory of Prescaler.................................................................................................................................

B-III-2-3

 

Programming Notes..........................................................................................................................................

B-III-2-7

III-3

8-BIT PROGRAMMABLE TIMERS .................................................................

B-III-3-1

 

Configuration of 8-Bit Programmable Timer ............................................................................................

B-III-3-1

 

Output Pins of 8-Bit Programmable Timers.............................................................................................

B-III-3-1

 

Uses of 8-Bit Programmable Timers...........................................................................................................

B-III-3-2

 

Control and Operation of 8-Bit Programmable Timer ..........................................................................

B-III-3-4

 

Control of Clock Output...................................................................................................................................

B-III-3-7

 

8-Bit Programmable Timer Interrupts and DMA.....................................................................................

B-III-3-8

 

I/O Memory of 8-Bit Programmable Timers...........................................................................................

B-III-3-10

 

Programming Notes........................................................................................................................................

B-III-3-17

III-4

16-BIT PROGRAMMABLE TIMERS................................................................

B-III-4-1

 

Configuration of 16-Bit Programmable Timer..........................................................................................

B-III-4-1

 

I/O Pins of 16-Bit Programmable Timers..................................................................................................

B-III-4-2

 

Uses of 16-Bit Programmable Timers........................................................................................................

B-III-4-3

 

Control and Operation of 16-Bit Programmable Timer........................................................................

B-III-4-4

 

Controlling Clock Output.................................................................................................................................

B-III-4-7

 

16-Bit Programmable Timer Interrupts and DMA ..................................................................................

B-III-4-9

 

I/O Memory of 16-Bit Programmable Timers.........................................................................................

B-III-4-12

 

Programming Notes........................................................................................................................................

B-III-4-25

III-5

WATCHDOG TIMER ......................................................................................

B-III-5-1

 

Configuration of Watchdog Timer................................................................................................................

B-III-5-1

 

Control of Watchdog Timer............................................................................................................................

B-III-5-1

 

Operation in Standby Modes........................................................................................................................

B-III-5-2

 

I/O Memory of Watchdog Timer...................................................................................................................

B-III-5-3

 

Programming Notes..........................................................................................................................................

B-III-5-3

III-6

LOW-SPEED (OSC1) OSCILLATION CIRCUIT ...............................................

B-III-6-1

 

Configuration of Low-Speed (OSC1) Oscillation Circuit......................................................................

B-III-6-1

 

I/O Pins of Low-Speed (OSC1) Oscillation Circuit................................................................................

B-III-6-1

 

Oscillator Types .................................................................................................................................................

B-III-6-2

 

Controlling Oscillation......................................................................................................................................

B-III-6-3

 

Switching Over the CPU Operating Clock................................................................................................

B-III-6-3

 

Power-Control Register Protection Flag ...................................................................................................

B-III-6-4

 

Operation in Standby Mode ..........................................................................................................................

B-III-6-4

 

OSC1 Clock Output to External Devices..................................................................................................

B-III-6-4

 

I/O Memory of Clock Generator...................................................................................................................

B-III-6-5

 

Programming Notes..........................................................................................................................................

B-III-6-8

EPSON

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