h8s-2628 Renesas Electronics Corporation., h8s-2628 Datasheet - Page 393
h8s-2628
Manufacturer Part Number
h8s-2628
Description
Renesas 16-bit Single-chip Microcomputer H8s Family/h8s/2600 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.H8S-2628.pdf
(641 pages)
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[3]
No
No
Read receive data in RDR, and
clear RDRF flag in SSR to 0
Clear ORER flag in SSR to 0
Read ORER flag in SSR
Clear RE bit in SCR to 0
Read RDRF flag in SSR
Overrun error processing
All data received?
Error processing
Start reception
Initialization
Figure 14.19 Sample Serial Reception Flowchart
ORER = 1
RDRF = 1
<End>
<End>
Yes
Yes
No
(Continued below)
Error processing
Yes
[2]
[1]
[3]
[4]
[5]
Section 14 Serial Communication Interface (SCI)
[1] SCI initialization:
[2] [3] Receive error processing:
[4] SCI status check and receive data
[5] Serial reception continuation
Rev. 3.00 Oct 04, 2005 page 353 of 598
The RxD pin is automatically
designated as the receive data input
pin.
If a receive error occurs, read the
ORER flag in SSR, and after
performing the appropriate error
processing, clear the ORER flag to 0.
Transfer cannot be resumed if the
ORER flag is set to 1.
read:
Read SSR and check that the RDRF
flag is set to 1, then read the receive
data in RDR and clear the RDRF flag
to 0.
Transition of the RDRF flag from 0 to 1
can also be identified by an RXI
interrupt.
procedure:
To continue serial reception, before
the MSB (bit 7) of the current frame is
received, reading the RDRF flag,
reading RDR, and clearing the RDRF
flag to 0 should be finished. The
RDRF flag is cleared automatically
when the DTC is activated by a
receive data full interrupt (RXI) request
and the RDR value is read.
REJ09B0155-0300
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