MC68340AB16E Datasheet, PDF (340/441 Pages) Motorola, Inc – Integrated Processor with DMA User’s Manual

Freescale Semiconductor, Inc.
OUTCH
POUCH
IS
CHANNEL A
N
TRANSMITTER
READY
?
Y
SEND CHARACTER
IN D0 TO CHANNEL A
TRANSMITTER
IS
CHANNEL B
N
TRANSMITTER
READY
?
Y
SEND CHARACTER
IN D0 TO CHANNEL
B TRANSMITTER
WAS
CHARACTER A
N
CARRIAGE
RETURN
?
Y
OUTCHI
WAS
CHARACTER A
N
CARRIAGE
RETURN
?
Y
POUCHI
IS
CHANNEL A
N
TRANSMITTER
READY
?
Y
SEND A LINE
FEED CHARACTER TO
CHANNEL A
TRANSMITTER
OUTCHR
IS
CHANNEL B
N
TRANSMITTER
READY
?
Y
SEND A LINE
FEED CHARACTER TO
CHANNEL B
TRANSMITTER
POUTCHR
RETURN
RETURN
Figure 7-10. Serial Module Programming Flowchart (5 of 5)
MOTOROLA
MC68340 USER’S MANUAL
7-45
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