HD64F2168 Datasheet, PDF (465/874 Pages) Renesas Technology Corp – Renesas 16-Bit Single-Chip Microcomputer

TE bit
Transmission start
Transmission end
Transition to
software standby
mode
Software standby
mode cancelled
SCK
output pin
TxD
output pin
Port
input/output
Port
High output
Start
SCI TxD output
Stop
Port
input/output
Port input/output
Port
High output
SCI
TxD output
Figure 14.40 Pin States during Transmission in Asynchronous Mode (Internal Clock)
TE bit
Transmission start
Transmission end
Transition to
Software standby
software standby _{mode cancelled}
mode
SCK
output pin
TxD
output pin
Port
input/output
Port
Marking output
Note: Initialized in software standby mode
Port
input/output
SCI TxD output
Last TxD bit retained Port input/output High output*
Port
SCI
TxD output
Figure 14.41 Pin States during Transmission in Clock Synchronous Mode
(Internal Clock)
Rev. 3.00, 03/04, page 425 of 830