h8s-2158 Renesas Electronics Corporation., h8s-2158 Datasheet - Page 517

• Manufacturer Part Number: h8s-2158
• Description: Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2100 Series
• Manufacturer: Renesas Electronics Corporation.

TE bit
SCK
output pin
TxD
output pin
Note: * Initialized in software standby mode
Figure 16.41 Pin States during Transmission in Clocked Synchronous Mode
Make transition to software standby mode etc.
input/output
Figure 16.42 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
RDRF = 1
Yes
Yes
RE = 0
Marking output
Transmission start
Section 16 Serial Communication Interface (SCI, IrDA, and CRC)
(Internal Clock)
No
No
SCI TxD output
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
Rev. 3.00 Jan 25, 2006 page 465 of 872
Transition to
software standby
mode
Port input/output
input/output
Port
Port
REJ09B0286-0300
Software standby
mode cancelled
High output *
SCI
TxD output