HD64F2145 Datasheet, PDF (429/829 Pages) Renesas Technology Corp – Hitachi 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 15.25 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
Port
input/output
TxD
output pin
Port
input/output
Port
Marking output
SCI TxD output
Last TxD bit retained Port input/output High output*
Port
SCI
TxD output
Note:* Initialized in software standby mode
Figure 15.26 Pin States during Transmission in Clocked Synchronous Mode
(Internal Clock)
Rev. 2.0, 08/02, page 389 of 788