turck BL20 Series - Page 416

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Schematic diagram of the transmit sequence
TXBUF FLUSH 0 -1 The TXBUF FLUSH bit is used for clearing the transmit buffer.
If STATRES = 0, 1 or 0 1:
A request with TXBUF FLUSH = 1 will be ignored.
At TXBUF FLUSH = 1, the falling edge from 10 of
STATRES, the send buffer is cleared.
RXBUF FLUSH 0 - 1 The RXBUF FLUSH bit is used for clearing the receive buffer.
If STATRES = 0, 1 or 01:
A request with RXBUF FLUSH = 1 will be ignored.
If RXBUF FLUSH = 1, a rising edge 10 at STATRES clears the receive
buffer.
TXBufDis 0-1 Setting this bit deactivates the sending of the TX buffer.
The bit can be used as control bit for actively triggering the sending of
the TX data buffer.
Fig. 288: Schematic diagram of the transmit sequence
Designation Value Description