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Transmitter Operation
9-17
Synchronous Serial Port
If the SDTR is loaded with a new word while the transmit FIFO buffer is full, the
new word will be lost; the FIFO buffer will not accept any more than four words.
The burst mode can be discontinued (changed to continuous mode) only by
a serial-port or device reset. Changing the FSM bit during transmit or halt will
not necessarily cause a switch to continuous mode.
Figure 9–4. Burst Mode Transmission With Internal Frame Sync
and Multiple Words in the Buffer
CLKX
FSX
DX
XINT
A15 A14 A13 A12
A11 A10 ... A0
LSB
MSB
B15 B14 B13 B12
MSB
XSR loaded
from buffer
XSR loaded
from buffer