Renesas H8S/2100 Series Hardware Manual page 450

Section 14 Serial Communication Interface (SCI)
TE bit
SCK
output pin
TxD
Port
output pin input/output
Port
Figure 14.34 Pin States during Transmission in Asynchronous Mode (Internal Clock)
TE bit
SCK
output pin
TxD
Port
output pin
input/output
Port
Note: Initialized in software standby mode
Figure 14.35 Pin States during Transmission in Clocked Synchronous Mode
Rev. 1.00 May 09, 2008 Page 424 of 954
REJ09B0462-0100
Transmission start
High output Start
SCI TxD output
Transmission start
Marking output
SCI TxD output
(Internal Clock)
Transition to
software standby
Transmission end
mode
Stop
Transition to
software standby
Transmission end
mode
Last TxD bit retained
Software standby
mode cancelled
Port
input/output
Port input/output High output
SCI
Port
TxD output
Software standby
mode cancelled
Port
input/output
Port input/output High output*
SCI
Port
TxD output