MCF5206FT33A Datasheet, PDF (303/449 Pages) Freescale Semiconductor, Inc – ColdFire Processor Core, DRAM Controller, Dual Universal Synchronous/Asynchronous Receiver/Transmitter (DUART)

Freescale Semiconductor, Inc.
DATE: 9-2-98
REVISION NO.: 1.1
PAGES AFFECTED: SEE CHANGE BARS
SECTION 11
UART MODULES
The MCF5206 contains two universal asynchronous/synchronous receiver/transmitters
(UARTs) that act independently. Each UART is clocked by the system clock, which
eliminates the need for an external crystal.
Each UART module, shown in Figure 11-1, consists of the following major functional areas:
Â¥ Serial Communication Channel
Â¥ 16-Bit Baud-RateTimer
Â¥ Internal Channel Control Logic
Â¥ Interrupt Control Logic
SERIAL COMMUNICATION
CHANNEL
16-BIT TIMER
FOR BAUD RATE GENERATION
INTERNAL CHANNEL
CONTROL LOGIC
CTS
RTS
RXD
TXD
SYSTEM CLOCK
TIN (EXT CLK)
INTERRUPT CONTROL
LOGIC
Figure 11-1. UART Block Diagram
MOTOROLA
MCF5206 USERÕS MANUAL Rev 1.0
11-1
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