FUJITSU MB86617A - Manual (Page 125)

LSI S pecification MB86617A
Rev.1.0 Fujitsu VLSI
120
11.3.
Asynchronous Packet Transmitting
The example of control flow for transmitting of Asynchronous packet is shown below.
< < Flow chart before storing transmitting data into Asynchronous transmit FIFO
Figure 11.3.1 Flow chart before storing transmitting data in Asynchronous transmit FIFO
Note1: Store the data to be transmit previously in Asynchronous transmit FIFO.
Note2: If the transmitting length is below the digit of quadret, write “0” there up to quadret unit.
Note3: The device can automatically attaches CRC code.
START
Write one word the data to be
transmitted in Asynchronous transmit
data port.
Number of residual transfer byte =
Number of residual transfer byte
–(minus) 2.
Number of residual transfer
byte > 0
END
Write data for 1 word for
Asynchronous transmit buffer and
increment the write pointer.