FUJITSU MB91460 SERIES FR60 - Manual (Page 210)

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Chapter 13 Clock Control
4.Registers
• Sets the clock division ratio for the clock used by the peripheral circuits and peripheral bus (CLKP).
The 16 options listed in the table are available.
• Do not set a division ratio that exceeds the maximum operating frequency of the MCU.
1010
Φ/11
1011
Φ/12
1100
Φ/13
1101 Φ/14
1110
Φ/15
1111
Φ/16