Table of Contents
Advertisement
Section 16 Serial Communication Interface with FIFO (SCIF)
(4)
Suspension of Data Transmission
Figure 16.9 shows an example of the data transmission suspension flowchart.
Modem status change interrupt
Read DCTS flag in FMSR
DCTS = 1
Suspend data write to transmit FIFO
Set XMITFRST bit in FFCR to 1
Prepare for retransmission
(Transmission flow)
Figure 16.9 Example of Data Transmission Suspension Flowchart
Rev. 1.00 May 09, 2008 Page 484 of 954
REJ09B0462-0100
[ 1 ]
No
(Other processing)
Yes
[ 2 ]
[ 3 ]
[ 4 ]
[1] Read the DCTS flag in FMSR in the modem
status change interrupt processing routine.
If the DCTS flag is set to 1, the transmission
suspension processing starts.
[2] Suspend data write to the transmit FIFO.
[3] Set the XMITFRST bit in FFCR to 1.
[4] Prepare for retransmission of data and go to
the transmission flow.
Advertisement
Table of Contents
