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M32C/8B Scheda tecnica(PDF) 104 Page - Renesas Technology Corp

Il numero della parte M32C/8B
Spiegazioni elettronici  RENESAS MCU M16C FAMILY / M32C/80 SERIES
PDF  406 Pages
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Produttore elettronici  RENESAS [Renesas Technology Corp]
Homepage  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M32C/8B Scheda tecnica(HTML) 104 Page - Renesas Technology Corp

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Under development
M32C/8B Group
9. Clock Generation Circuits
Preliminary specification
Specifications in this manual are tentative and subject to change.
REJ09B0450-0050 Rev.0.50 Oct 31, 2008
Page 87 of 385
9.5.2
Wait Mode
In wait mode, the CPU and watchdog timer stop operating. If the PM22 bit in the PM2 register is set to 1 (on-
chip oscillator clock as watchdog timer count source), the watchdog timer continues operating. Since the main
clock, sub clock, and on-chip oscillator clock continue running, peripheral functions using these clocks as their
clock source also continue to operate.
9.5.2.1
Peripheral Function Clock Stop Function
If the CM02 bit in the CM0 register is set to 1 (peripheral clocks stop in wait mode), fAD, f1, f8, and f32 stop in
wait mode. f2n, which uses the clock selected by the CM21 bit in the CM2 register as its clock source, also
stops in wait mode. Power consumption can be reduced by stopping these peripheral clocks. f2n, which uses the
XIN clock (fXIND) or on-chip oscillator clock as its clock source, and fC32 do not stop even in wait mode.
9.5.2.2
Entering Wait Mode
Figure 9.17 shows a procedure to enter wait mode.



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