SH7065 Datasheet, PDF (183/941 Pages) Renesas Technology Corp – Renesas 32-Bit RISC Microcomputer SuperH RISC engine Family/SH7000 Series

Section 4 Clock Pulse Generator (CPG) and Power-Down Modes
4.15 Note on Initialization
To reduce current dissipation, the following instructions should be executed in application
software initialization.
PCLR A0
; Clear A0 register to 0
PSHA #5, A0 ; Left-shift 5 bits
As there are nodes that are not initialized by a power-on reset after powering on, current
dissipation may increase by approximately 30 mA if the above instructions are not executed.
Rev. 5.00 Sep 11, 2006 page 161 of 916
REJ09B0332-0500