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38K2 Datasheet(PDF) 199 Page - Renesas Technology Corp

Part # 38K2
Description  RENESAS 8-BIT SINGLE-CHIP MICROCOMPUTER 740 FAMILY / 38000 SERIES
PDF  358 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

38K2 Datasheet(HTML) 199 Page - Renesas Technology Corp

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2.4 Serial I/O
Rev.2.00
Oct 15, 2006
page 50 of 112
38K2 Group
REJ09B0338-0200
APPLICATION
Fig. 2.4.16 Registers setting related to receiving side
b7
b0
Receiving side
Serial I/O control register (Address : 0FE016)
SIOCON
Serial I/O synchronous clock selection bit : External clock
SRDY
output enable bit : SRDY output enabled
Transmit enable bit : Transmit enabled
Set this bit to “1”, using SRDY output.
Receive enable bit : Receive enabled
Serial I/O mode selection bit : Clock synchronous serial I/O
Serial I/O enable bit : Serial I/O enabled
1
1
1
1
1
1
Serial I/O status register (Address : 2716)
SIOSTS
b7
b0
Receive buffer full flag
Confirm completion of receiving 1-byte data with this flag.
“1” : At completing reception
“0” : At reading out contents of Receive buffer register
Overrun error flag
“1” : When data is ready in Receive shift register while Receive buffer
register contains the data.
Parity error flag
“1” : When a parity error occurs in enabled parity.
Framing error flag
“1” : When stop bits cannot be detected at the specified timing.
Summing error flag
“1” : when any one of the following errors occurs.
• Overrun error
• Parity error
• Framing error



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