M37702E6BFS Renesas Electronics America, M37702E6BFS Datasheet - Page 200
M37702E6BFS
Manufacturer Part Number
M37702E6BFS
Description
EPROM MCU/8BIT CMOS EMULATION CH
Manufacturer
Renesas Electronics America
Datasheet
1.M37702E6BFS.pdf
(524 pages)
Specifications of M37702E6BFS
Accessory Type
Emulator EPROM MCU
For Use With/related Products
7702
Lead Free Status / RoHS Status
Contains lead / RoHS non-compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Part Number:
M37702E6BFS
Manufacturer:
MITSUBISHI/三菱
Quantity:
20 000
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SERIAL I/O
7.3 Clock synchronous serial I/O mode
Fig. 7.3.12 Case of overrun error cannot be detect (using clock synchronous seriai I/O mode)
7–34
6. When receiving data continuously, an overrun error cannot be detected in the following situation: when
the next data reception is completed between reading the error flag by software and reading the UARTi
receive buffer register.
UARTi receive interruput
Receive complete flag
Software management
When checking this error flag by software, the microcomputer judges errors nothing because
When receiving the data B, the data B is written to the UARTi receive buffer register and the data
When reading the UARTi receive buffer register by software, the data B is read and the overrun
errors do not have occurred at data A receiving.
A is cleard and the overrun error flag becomes “1” simultaneously. The UARTi receive interrupt
request bit does not change.
error flag becomes “0” simultaneously. Accordingly, the overrun error cannot may be detected
and it is possible that the data B is managed as the data A.
Overrun error flag
UARTi receive
Transfer clock
buffer register
request bit
RxD
D
0
Undefined
D
1
7702/7703 Group User’s Manual
D
6
D
7
D
0
Data A
Data A error flag
D
1
Error flag reading
(No error )
D
6
Data B reading
D
Data reading
7
Data B
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