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Serial Interface
13-50
<Reception>
• Transfer with 7-bit data length, parity on, and 2 stop bit
Fig. 13-4-5 Timing Chart (20)
• Two-byte transfer with 8-bit data length, parity off, and 1 stop bit
Fig. 13-4-6 Timing Chart (21)
After reception end (when the SC3RBF flag is "1"), the received data is fetched by reading the SC3RXB. In the
case of a 7-bit transfer, the MSB (bit 7) is "0".
The SC3RXF flag is set to "1" at the start of reception (when the start bit is detected), and is set to "0" at the end of
reception.
The SC3RBF flag is set to "1" at the end of reception, and is set to "0" when SC3RXB is read.
SC3RXF flag
SBI pin
SC3RBF flag
bp1 bp2 bp3 bp4 bp5 bp6 PTYbp0ST SP
Interrupt request
Data read
SP
bp1 bp2 bp3 bp4 bp5 bp6bp0ST bp1 bp2 bp3 bp4 bp5 bp6bp0ST SPSPbp7 bp7
SC3RXF flag
SBI pin
SC3RBF flag
Interrupt request
Data read