h8s-2646 Renesas Electronics Corporation., h8s-2646 Datasheet - Page 517
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h8s-2646
Manufacturer Part Number
h8s-2646
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2646.pdf
(1165 pages)
- Current page: 517 of 1165
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Serial data reception (clocked synchronous mode): Figure 13.18 shows a sample flowchart for
serial reception.
The following procedure should be used for serial data reception.
When changing the operating mode from asynchronous to clocked synchronous, be sure to check
that the ORER, PER, and FER flags are all cleared to 0.
The RDRF flag will not be set if the FER or PER flag is set to 1, and neither transmit nor receive
operations will be possible.
Serial clock
Serial data
TDRE
TEND
TXI interrupt
request generated
Figure 13.17 Example of SCI Operation in Transmission
Bit 0
Data written to TDR
and TDRE flag
cleared to 0 in TXI
interrupt service routine
Transfer direction
Bit 1
1 frame
TXI interrupt
request generated
Bit 7
Section 13 Serial Communication Interface (SCI)
Bit 0
Rev. 5.00 Sep 22, 2005 page 491 of 1136
Bit 1
Bit 6
REJ09B0257-0500
TEI interrupt
request generated
Bit 7
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