mcf5272 Freescale Semiconductor, Inc, mcf5272 Datasheet - Page 395

• Manufacturer Part Number: mcf5272
• Description: Mcf5272 Coldfire Integrated Microprocessor User
• Manufacturer: Freescale Semiconductor, Inc

MOTOROLA
Figure 16-31. UART Mode Programming Flowchart (Sheet 4 of 5)
WARM START ADDRESS
ADDRESS ON SYSTEM
STACK AND MONITOR
CLEAR CHANGE-IN-
BREAK STATUS BIT
CHARACTER FROM
CLEAR CHANGE-IN-
BREAK STATUS BIT
REPLACE RETURN
ABRKI1
REMOVE BREAK
SIRQR
ABRKI
RECEIVER FIFO
BY BEGINNING
END-OF-BREAK
IRQ CAUSED
IRQ ARRIVED
OF A BREAK
SIRQ
WAS
RTE
HAS
YET
?
?
Y
Y
N
N
Chapter 16. UART Modules
PLACE CHARACTER
RECEIVER HAVE A
CHARACTER
CHANNEL A
RETURN
IN D0
INCH
DOES
?
Y
N
Operation
16-35