Hitachi SH7750 series Hardware Manual page 817

TCLK
t t
TCLKWH TCLKWL
t t
TCLKf TCLKr
Figure 23.61 TCLK Input Timing
Stable oscillation
RTC internal clock
V cc
V cc min
t
ROSC
Figure 23.62 RTC Oscillation Settling Time at Power-On
t
SCKW
SCK, SCK2
t
Scyc
t t
SCKf SCKr
Figure 23.63 SCK Input Clock Timing
Rev. 4.0, 04/00, page 809 of 850