Figure 23.59 Tclk Input Timing; Figure 23.60 Rtc Oscillation Settling Time At Power-On; Figure 23.61 Sck Input Clock Timing; Figure 23.62 Sci I/O Synchronous Mode Clock Timing - Hitachi SH7751 Hardware Manual

TCLK
RTC internal clock
V -RTC
DD

Figure 23.60 RTC Oscillation Settling Time at Power-On

SCK, SCK2

Figure 23.62 SCI I/O Synchronous Mode Clock Timing

t t
TCLKWH TCLKWL

Figure 23.59 TCLK Input Timing

V -RTC min
DD
t
SCKW
t
Scyc

Figure 23.61 SCK Input Clock Timing

SCK
TXD
RXD
t
TCLKf
Oscillation settling time
t
ROSC
t
SCKf
t
Scyc
t t
TXD TXD
t t
RXS RXH
Rev. 3.0, 04/02, page 1019 of 1064
t
TCLKr
t
SCKr