h8s-2111b Renesas Electronics Corporation., h8s-2111b Datasheet - Page 309

• Manufacturer Part Number: h8s-2111b
• 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 12.23 Pin States during Transmission in Clocked Synchronous Mode
Figure 12.24 Sample Flowchart for Mode Transition during Reception
input/output
Cancel software standby mode etc.
Port
Port
Make transition to software
Read receive data in RDR
Change operating mode?
Read RDRF flag in SSR
standby mode etc.
Start reception
Initialization
Marking output
Reception
RDRF = 1
Yes
Yes
RE = 0
Transmission start
(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. 1.00, 05/04, page 275 of 544
Transition to
software standby
mode
Port input/output
input/output
Port
Port
Software standby
mode cancelled
High output*
TxD output
SCI