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M32C/8B Datenblatt(PDF) 95 Page - Renesas Technology Corp

Teilenummer M32C/8B
Bauteilbeschribung  RENESAS MCU M16C FAMILY / M32C/80 SERIES
PDF  406 Pages
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Hersteller  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M32C/8B Datenblatt(HTML) 95 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 78 of 385
Figure 9.12
Procedure to Switch from On-chip Oscillator Clock to Main Clock
Start
End
PRCR register: PRC0 bit = 1
Verified several times?
0 (Main clock oscillates)
MCD register: bits MCD4 to MCD0 = 01000b
CM2 register: CM22 bit = 0
CM2 register: CM21 bit = 0
PRC0 bit = 0
YES
1 (Main clock stops)
NO
Divide-by-8 mode
Loss of the main clock is not detected
Select the main clock as the CPU clock source
Disable writing to registers associated with clocks
Enable writing to registers associated with clocks
Read the CM23 bit in the
CM2 register



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