HD6413008F RENESAS [Renesas Technology Corp], HD6413008F Datasheet - Page 500

• Manufacturer Part Number: HD6413008F
• Description: Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Series
• Manufacturer: RENESAS [Renesas Technology Corp]

17. Clock Pulse Generator
17.5.3
The DIVCR setting changes the φ frequency, so note the following points.
• Select a frequency division ratio that stays within the assured operation range specified for the
• All on-chip module operations are based on φ. Note that the timing of timer operations, serial
Rev.4.00 Aug. 20, 2007 Page 456 of 638
REJ09B0395-0400
clock cycle time t
operating frequency range. Ensure that φ is not below this lower limit.
communication, and other time-dependent processing differs before and after any change in
the division ratio. The waiting time for exit from software standby mode also changes when
the division ratio is changed. For details, see section 18.4.3, Selection of Waiting Time for Exit
from Software Standby Mode.
Usage Notes
cyc
in the AC electrical characteristics. Note that φ
min
= lower limit of the