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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-2-8
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 Low-Speed (OSC1) Oscillation Circuit ............................................................. B-III-6-5
Programming Notes................................................................................................................... B-III-6-8
S1C33L03 TECHNICAL MANUAL
EPSON
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