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M32C/86 Datasheet(PDF) 480 Page - Renesas Technology Corp

Part # M32C/86
Description  RENESAS 16/32-BIT SINGLE-CHIP MICROCOMPUTER M16C FAMILY / M32C/80 SERIES
PDF  505 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

M32C/86 Datasheet(HTML) 480 Page - Renesas Technology Corp

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27.5.3 PLL Frequency Synthesizer
Stabilize supply voltage to meet the power supply standard when using the PLL frequency synthesizer.
Table 27.3 Power Supply Ripple
27. Precautions (Clock Generation Circuit)
Figure 27.2 Power Supply Fluctuation Timing
27.5.4 External Clock
Do not stop an external clock running if the main clock is selected as the CPU clock while the external
clock is applied to the XIN pin.
Do not set the CM05 bit in the CM0 register to "1" (main clock stopped) while the external clock input is
used for the CPU clock.
27.5.5 Clock Divide Ratio
Set the PM12 bit in the PM1 register to "0" (no wait state) when changing the MCD4 to MCD0 bit settings
in the MCD register.
27.5.6 Power Consumption Control
Stabilize the main clock, sub clock or PLL clock to switch the CPU clock source to each clock.
27.5.6.1 Wait Mode
When entering wait mode while the CM02 bit in the CM0 register is set to "1" (peripheral function stop
in wait mode), set the MCD4 to MCD0 bits in the MCD register to maintain the 10-MHz CPU clock
frequency or less.
When entering wait mode, the instruction queue reads ahead to instructions following the WAIT in-
struction, and the program stops. Write at least 4 NOP instructions after the WAIT instruction.
Vp-p(ripple)
f(ripple)
VCC
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Power Supply Ripple Tolerable Frequency
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Vp-p(ripple)
Power Supply Ripple Amplitude
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