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7477 Datasheet(PDF) 141 Page - Renesas Technology Corp

Part # 7477
Description  8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 7470 SERIES
PDF  361 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

7477 Datasheet(HTML) 141 Page - Renesas Technology Corp

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7470/7471/7477/7478 GROUP USER’S MANUAL
1-134
HARDWARE
1.13 Serial I/O
Table 1.13B.8 Error flag clear method
2 Summing error flag (SE, bit 6)
This flag judges a serial I/O error.
If one of an overrun error, a parity error and a framing error occurs, the flag is set to “1.”
This flag is cleared by any operation shown in Table 1.13B.8.
This flag is valid in both clock synchronous serial I/O and UART.
[Error flag clear method]
The error flags (bit 3 to bit 6) in the Serial I/O status register can be cleared to “0” by the error
flag clear methods shown in Table 1.13B.8.
Error flag
Overrun error flag
Parity error flag
Framing error flag
Summing error flag
Clear the receive enable bit
to “0.”
,
,
,
,
Write dummy data into the
SIOSTS.
,
,
,
,
Clear the serial I/O inter-
rupt enable bit to “0.”
,
×
×
×



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