H8S2110B RENESAS [Renesas Technology Corp], H8S2110B Datasheet - Page 304

• Manufacturer Part Number: H8S2110B
• Description: Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
• Manufacturer: RENESAS [Renesas Technology Corp]

Section 12 Serial Communication Interface (SCI)
Rev. 2.00 Mar 21, 2006 page 266 of 518
REJ09B0299-0200
output pin
output pin
SCK
TxD
TE bit
Note:* Initialized in software standby mode
Figure 12.23 Pin States during Transmission in Clocked Synchronous Mode
input/output
Make transition to software standby mode etc.
Figure 12.24 Sample Flowchart for Mode Transition during Reception
Cancel software standby mode etc.
Port
Port
Read receive data in RDR
Change operating mode?
Read RDRF flag in SSR
Start reception
Initialization
Reception
Marking output
RDRF = 1
Yes
Yes
RE = 0
Transmission start
SCI TxD output
(Internal Clock)
No
No
RE = 1
[1]
[2]
Transmission end
[1] Data being received will be invalid.
[2] Module stop, watch, sub-active, and sub-
sleep modes are included.
Last TxD bit retained
Transition to
software standby
mode
Port input/output
input/output
Port
Port
Software standby
mode cancelled
High output*
TxD output
SCI