Datasheet

14-20 MCF5307 User’s Manual
Operation
Figure 14-20. Transmitter and Receiver Functional Diagram
Receiver Shift Register
UART Command Register (UCR0) W
UART Status Register (USR0)
R
Transmitter Shift Register
UART Mode Register 1 (UMR1) R/W
UART Mode Register 2 (UMR2) R/W
Transmitter Holding Register
W
Receiver Holding Register 3
Receiver Holding Register 2
Receiver Holding Register 1
R
UART Receive
UART
Buffer (URB0)
(4 Registers)
UART0
External
Interface
RXD
TXD
Transmitter Buffer
(UTB0)
(2 Registers)
FIFO
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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