CHAPTER 14 SERIAL INTERFACE UART6
Preliminary User’s Manual U16315EJ1V0UD
295
Figure 14-14 shows the processing flow of continuous transmission.
Figure 14-14. Processing Flow of Continuous Transmission
Set registers.
Interrupt occurs.
Wait for interrupt.
Transfer executed
necessary number
of times?
Write transmit data to
TXB6 register.
Write transmit data to
TXB6 register.
Read ASIF6
register.
TXBF6 = 0?
Read ASIF6
register.
TXSF6 = 1?
Read ASIF6
register.
TXSF6 = 0?
No
No
No
No
Yes
Yes
Yes
Yes
Completion of
transmission processing
Remark
TXB6:
Transmit buffer register 6
ASIF6:
Asynchronous serial interface transmission status register 6
TXBF6: Bit 1 of ASIF6 (transmit buffer data flag)
TXSF6: Bit 0 of ASIF6 (transmit shift register data flag)