Epson S1C33210 User Manual
Page 9
TABLE OF CONTENTS
EPSON
v
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