Sci Input/Output Timing - Hitachi H8/3008 Hardware Manual

φ
TCLKA to
TCLKD
19.6.6

SCI Input/Output Timing

SCI timing is shown as follows:
• SCI input clock timing
Figure 19.14 shows the SCI input clock timing.
• SCI input/output timing (synchronous mode)
Figure 19.15 shows the SCI input/output timing in synchronous mode.
SCK , SCK
0
SCK ,
0
SCK
1
TxD , TxD
0 1
(transmit
data)
RxD , RxD
0 1
(receive
data)
Figure 19.15 SCI Input/Output Timing in Synchronous Mode
t
TCKWL
Figure 19.13 Timer External Clock Input Timing
t
SCKW
1
Figure 19.14 SCI Input Clock Timing
t
Scyc
t
TXD
t
TCKS
t
TCKWH
t
Scyc
t t
RXS RXH
t
TCKS
t
t
SCKr
SCKf
479