Motorola ColdFire MCF5281 - Manual (Page 452)

UART Modules
23-32 Freescale Semiconductor
Figure 23-25. UART Mode Programming Flowchart (Sheet 3 of 5)
A B
B
FRCHK
Have
Framing Error?
Set Framing
Error Flag
PRCHK
Have
Parity Error?
Set Parity
Error Flag
Get Character
From Receiver
Same As
Transmitted
Character?
Set Incorrect
Character Flag
N
N
Y
CHRCHK
Y
N
Disable
Transmitter
RSTCHN
Restore
To Original Mode
Return
Y
MCF5282 and MCF5216 ColdFire Microcontroller User’s Manual, Rev. 3