Hitachi SH7095 Hardware User Manual page 319

Table 11.4 Internal Clock Switching and FRC Operation (cont)
Timing of Rewrite of
No. CKS1 and CKS0 Bits
3 High to low switch
4 High to high switch
Note: Because the time of switching is considered a falling edge, the FRC starts counting up.
6. Timer Output (FTOA, FTOB)
During a reset that occurs while the power supply is coming up, the timer outputs (FTOA,
FTOB) will be unreliable until the oscillation stabilizes. The initial value is output after the
oscillation settling time has elapsed.
308 Hitachi
FRC Operation