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Renesas M32R/ECU Series

Renesas M32R/ECU Series
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18
18-6
OSCILLATOR CIRCUIT
32180 Group User's Manual (Rev.1.0)
If a write cycle to other area exists in this interval,
settings of XDRV bits are not reflected.
XDRVP "1"
XDRVP "0"
XDRV Set value
• Example of correct setting
• Settings that do not have effect
Because a write cycle to other area exists,
the set value is not reflected.
XDRVP "1"
Write to other area
XDRVP "0"
XDRV Set value
(1)
(2)
Because these two consecutive writes comprise a pair,
the next set value is not reflected.
XDRVP "1"
XDRVP "1"
XDRVP "0"
XDRV Set value
Figure 18.1.4 Procedure for Setting the Oscillation Drive Capability
18.1 Oscillator Circuit

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