III PERIPHERAL BLOCK:
Configuration of
The Peripheral Block has a
The
The OSC1 clock output by this circuit is delivered to the CLG (clock generator) in the Core Block and is used as the source clock for the clock timer. It can also be used as a
Figure 6.1 shows the configuration of the clock system.
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OSC1 |
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OSC2 |
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FOSC1 |
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| Figure 6.1 Configuration of Clock System |
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The CPU operating clock can be switched to the output (OSC1 clock) of the
If the OSC3 clock is unnecessary such as when performing clock processing only, set the OSC1 clock for operation of the CPU/peripheral circuits and turn off the
The
For the control method when using the OSC1 clock for the operating clock of the peripheral circuits, refer to "Prescaler".
I/O Pins of
Table 6.1 lists the I/O pins of the
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| Table 6.1 I/O Pins of |
Pin name | I/O | Function |
OSC1 | I | |
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| Crystal oscillation or external clock input |
OSC2 | O | |
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| Crystal oscillation (open when external clock is used) |
P14/FOSC1/DCLK | I/O | I/O port / |
S1C33210 FUNCTION PART | EPSON |