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| MCF5282UM Datasheet, PDF (451/766 Pages) Freescale Semiconductor, Inc – MCF5282 and MCF5216 ColdFire Microcontroller User s Manual | |||
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UART Modules
CHCHK
CHCHK
Place Channel In
Local Loopback
Mode
Enable
Transmitter Clear
Status Word
TxCHK
Is
N
Transmitter
Ready?
SNDCHR Y
Send Character
To Transmitter
RxCHK
Has
N
Character Been
Received?
Y
A
N
Waited
Too Long?
Y
Set Transmitter-
Never-ready Flag
N
Waited
Too Long?
Y
Set Receiver-
Never-ready Flag
B
Figure 23-25. UART Mode Programming Flowchart (Sheet 2 of 5)
Freescale Semiconductor
MCF5282 and MCF5216 ColdFire Microcontroller Userâs Manual, Rev. 3
23-31
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