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Operation
CHCHK
CHCHK
PLACE CHANNEL IN
LOCAL LOOPBACK
MODE
ENABLE
TRANSMITTER CLEAR
STATUS WORD
TxCHK
IS
TRANSMITTER
READY
?
Y
SNDCHR
SEND CHARACTER
TO TRANSMITTER
RxCHK
HAS
CHARACTER BEEN
RECEIVED
?
Y
A
Figure 23-26. UART Mode Programming Flowchart (Sheet 2 of 5)
23-32
N
N
WAITED
TOO LONG
?
N
N
WAITED
TOO LONG
?
MCF5282 User's Manual
SET TRANSMITTER-
Y
NEVER-READY FLAG
Y
SET RECEIVER-
NEVER-READY FLAG
B
MOTOROLA
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