HD64F3437TF16 Datasheet, PDF (630/752 Pages) Hitachi Semiconductor – 12 V must not be applied to the S-mask model (single-power-supply specification), as this may permanently damage the device.

23.5.6 Serial Communication Interface Timing
(1) SCI Input/Output Timing
Serial clock
(SCK₀,
SCK₁)
Transmit
data
(TxD₀,
TxD₁)
Receive
data
(RxD₀,
RxD₁)
t_Scyc
t_TXD
t_RXS t_RXH
Figure 23.19 SCI Input/Output Timing (Synchronous Mode)
(2) SCI Input Clock Timing
t_SCKW
SCK₀, SCK₁
t_Scyc
Figure 23.20 SCI Input Clock Timing
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