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Renesas R8C/Tiny Series Manuale Pagina 27

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Vedere la pagina 26
R8C/10 Group
Rev.1.20 Jan 27, 2006 page 17 of 180
REJ09B0019-0120
•
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0 to 16 MHz
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Externally derived
clock can be in
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Other
On-chi
p
oscillator
• CPU clock source
• Peripheral function clock source
• CPU and peripheral function
clock sources when the main
clock sto
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About 125 kHz
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Oscillatin
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NOTES:
1. Can be used as P4
6
and P4
7
when the on-chip oscillator clock is used for CPU clock
while the main clock oscillation circuit is not used.
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(N
ote 1
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6. Clock Generation Circuit
The clock generation circuit contains two oscillator circuits as follows:
• Main clock oscillation circuit
• On-chip oscillator (with oscillation stop detection function)
Table 6.1 lists the clock generation circuit specifications. Figure 6.1 shows the clock generation circuit.
Figures 6.2 and 6.3 show the clock-related registers.
Table 6.1 Clock Generation Circuit Specifications
6. Clock Generation Circuit
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