HD64F2636F20 Datasheet, PDF (559/1512 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer H8S Family/H8S/2600 Series

H8S/2639, H8S/2638, H8S/2636,
H8S/2630, H8S/2635 Group
Section 13 Serial Communication Interface (SCI)
Start of transmission
End of
transmission
Transition
to software
standby
Exit from
software
standby
TE bit
SCK output pin
Port input/output
TxD output pin Port input/output High output
Port
Start
SCI TxD output
Stop
Port input/output
Port
High output
SCI TxD
output
Figure 13-24 Asynchronous Transmission Using Internal Clock
Start of transmission
End of
transmission
Transition
to software
standby
Exit from
software
standby
TE bit
SCK output pin
Port input/output
TxD output pin _{Port input/output Marking output}
Port
Note: * Initialized by software standby.
SCI TxD output
Last TxD bit held
Port input/output
Port
High output*
SCI TxD
output
Figure 13-25 Synchronous Transmission Using Internal Clock
REJ09B0103-0800 Rev. 8.00
May 28, 2010
Page 509 of 1458