SH7618 Datasheet, PDF (233/646 Pages) Renesas Technology Corp – 32-Bit RISC Microcomputer SuperHTM RISC engine Family / SH7618 Series

Section 8 Clock Pulse Generator (CPG)
8.4.3 Usage Notes
• MCLKCR is used only for generation of external PHY-LSI clocks.
• When changing the contents of MCLKCR or FRQCR, make sure that the external PHY-LSI is
in the reset state. Otherwise, a hazard may be generated on the CK_PHY signal. After the
contents of MCLKCR or FRQCR have been changed, clear the reset state of the PHY-LSI.
Rev. 6.00 Jun. 12, 2007 Page 201 of 610
REJ09B0131-0600