NEC 78K0S/KA1+ User Manual page 201

Figure 11-17 shows the timing of starting continuous transmission, and Figure 11-18 shows the timing of
ending continuous transmission.
Figure 11-17. Timing of Starting Continuous Transmission
T D6
X
INTST6
TXB6 FF
TXS6 FF
TXBF6
Note
TXSF6
Note When ASIF6 is read, there is a period in which TXBF6 and TXSF6 = 1, 1. Therefore, judge whether
writing is enabled using only the TXBF6 bit.
Remark T D6: T D6 pin (output)
X X
INTST6: Interrupt request signal
TXB6: Transmit buffer register 6
TXS6: Transmit shift register 6
ASIF6: Asynchronous serial interface transmission status register 6
TXBF6: Bit 1 of ASIF6
TXSF6: Bit 0 of ASIF6
CHAPTER 11 SERIAL INTERFACE UART6
Start Data (1) Parity
Data (1) Data (2)
Data (1)
User's Manual U16898EJ3V0UD
Stop Start Data (2)
Data (3)
Data (2)
Parity Stop Start
Data (3)
201