HD6433682 ETC, HD6433682 Datasheet - Page 301
HD6433682
Manufacturer Part Number
HD6433682
Description
Renesas 16-Bit Single-Chip Microcomputer H8 Family/H8/300H Tiny Series
Manufacturer
ETC
Datasheet
1.HD6433682.pdf
(504 pages)
Available stocks
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Part Number
Manufacturer
Quantity
Price
Part Number:
HD6433682A45HV
Manufacturer:
RENESAS/瑞萨
Quantity:
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Part Number:
HD6433682C74HV
Manufacturer:
HITACHI/日立
Quantity:
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[4]
Figure 16.13 Sample Serial Reception Flowchart (Clocked Synchronous Mode)
Yes
No
Read receive data in RDR
Clear RE bit in SCR3 to 0
Clear OER flag in SSR to 0
Read RDRF flag in SSR
Overrun error processing
Read OER flag in SSR
All data received?
Error processing
Start reception
RDRF = 1
OER = 1
<End>
<End>
Yes
No
No
(Continued below)
Error processing
Yes
[1]
[2]
[3]
[4]
[1]
[2]
[3]
[4]
Read the OER flag in SSR to determine if
there is an error. If an overrun error has
occurred, execute overrun error processing.
Read SSR and check that the RDRF flag is
set to 1, then read the receive data in RDR.
When data is read from RDR, the RDRF
flag is automatically cleared to 0.
To continue serial reception, before the
MSB (bit 7) of the current frame is received,
reading the RDRF flag and reading RDR
should be finished. When data is read from
RDR, the RDRF flag is automatically
cleared to 0.
If an overrun error occurs, read the OER
flag in SSR, and after performing the
appropriate error processing, clear the OER
flag to 0. Reception cannot be resumed if
the OER flag is set to 1.
Rev. 3.00, 05/03, page 271 of 472
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