H8S2110B RENESAS [Renesas Technology Corp], H8S2110B Datasheet - Page 297
H8S2110B
Manufacturer Part Number
H8S2110B
Description
Renesas 16-Bit Single-Chip Microcomputer Renesas H8S Family/H8S/2100 Series
Manufacturer
RENESAS [Renesas Technology Corp]
Datasheet
1.H8S2110B.pdf
(559 pages)
- Current page: 297 of 559
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Reception cannot be resumed while a receive error flag is set to 1. Accordingly, clear the ORER,
FER, PER, and RDRF bits to 0 before resuming reception. Figure 12.19 shows a sample flowchart
for serial data reception.
[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?
Figure 12.19 Sample Serial Reception Flowchart
Error processing
Start reception
Initialization
ORER = 1
RDRF = 1
<End>
<End>
Yes
Yes
No
(Continued below)
Error processing
Yes
[2]
[1]
[3]
[4]
[5]
Section 12 Serial Communication Interface (SCI)
[1] SCI initialization:
[2] [3] Receive error processing:
[4] SCI status check and receive data
[5] Serial reception continuation
Rev. 2.00 Mar 21, 2006 page 259 of 518
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.
REJ09B0299-0200
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