hd66100 Renesas Electronics Corporation., hd66100 Datasheet - Page 322
hd66100
Manufacturer Part Number
hd66100
Description
H8/3867 Series
Manufacturer
Renesas Electronics Corporation.
Datasheet
1.HD66100.pdf
(495 pages)
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
hd66100F
Manufacturer:
HIT
Quantity:
1 810
Company:
Part Number:
hd66100F
Manufacturer:
SW
Quantity:
1 815
Part Number:
hd66100F
Manufacturer:
RENESAS/瑞萨
Quantity:
20 000
- Current page: 322 of 495
- Download datasheet (2Mb)
7. Relation between RDR reads and bit RDRF
In a receive operation, SCI3 continually checks the RDRF flag. If bit RDRF is cleared to 0 when
reception of one frame ends, normal data reception is completed. If bit RDRF is set to 1, this
indicates that an overrun error has occurred.
When the contents of RDR are read, bit RDRF is cleared to 0 automatically. Therefore, if bit
RDR is read more than once, the second and subsequent read operations will be performed while
bit RDRF is cleared to 0. Note that, when an RDR read is performed while bit RDRF is cleared to
0, if the read operation coincides with completion of reception of a frame, the next frame of data
may be read. This is illustrated in figure 10.22.
Communication
line
RDRF
RDR
In this case, only a single RDR read operation (not two or more) should be performed after first
checking that bit RDRF is set to 1. If two or more reads are performed, the data read the first time
should be transferred to RAM, etc., and the RAM contents used. Also, ensure that there is
sufficient margin in an RDR read operation before reception of the next frame is completed. To
be precise in terms of timing, the RDR read should be completed before bit 7 is transferred in
synchronous mode, or before the STOP bit is transferred in asynchronous mode.
8. Transmit and receive operations when making a state transition
Make sure that transmit and receive operations have completely finished before carrying out state
transition processing.
Figure 10.22 Relation between RDR Read Timing and Data
Frame 1
Data 1
RDR read
Frame 2
Data 2
Data 1
(A)
RDR read
Data 1 is read at point
Data 2 is read at point
(B)
Frame 3
Data 3
Data 2
(B)
(A)
307
Related parts for hd66100
Image
Part Number
Description
Manufacturer
Datasheet
Request
R
Part Number:
Description:
Hd/sd Multi Format Video Encoder With 3ch Dac
Manufacturer:
AKM Semiconductor, Inc.
Datasheet:
Part Number:
Description:
Renesas Technology Corp [Renesas 32-Bit RISC Microcomputer Super RISC engine Family/SH7700 Series]
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
RENESAS MCU M16C FAMILY / M16C/Tiny SERIES
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Renesas Starter Kit for RX210
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas StarterKit for RX630
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit+ for RX63N
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
EVALBOARD/Renesas Starter Kit
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
FLASH PROGRAMMER FOR RENESAS MICROCONTROLLERS
Manufacturer:
Renesas Electronics Corporation.
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet:
Part Number:
Description:
Manufacturer:
Renesas Electronics Corporation.
Datasheet: