Datasheet

UART Modules
12-8 MCF5206e USER’S MANUAL MOTOROLA
Figure 12-5. Transmitter Timing Diagram
C1
C2 C3 C4
C6
W
WW
W
WW
W
W
C1 C2 C3 C4
STOP
BREAK
START
BREAK
C5
NOT
TRANSMITTED
C6
BREAK
C1 IN
TRANSMISSION
TxD
T
RANSMITTER
ENABLED
TxRDY
(SR2)
CS
CTS
RTS
2
1
NOTES:
1. TIMING SHOWN FOR UMR2(4) = 1
2. TIMING SHOWN FOR UMR2(5) = 1
3. C
N
= TRANSMIT CHARACTER
4. W = WRITE
MANUALLY ASSERTED
BY BIT- SET COMMAND
MANUALLY
ASSERTED
INTERNAL
MODULE
SELECT
(SR[2])
W
Trans.
Disable
Negated since
transmit buffer and
shift register are
empty (last character
has been shifted out)
Notes:
1. Timing shown for UMR2[4]=1
2. Timing shown for UMR2[5]=1
3. CN=Transmit 8-bit character
4. W= Write
5. Transmitter enabled by configuring TCx bits in UCR (see Table 11-9)
6. Start break/Stop break programmed by MISCx bits in UCR (see Table 11-8)
7. Transmitter is enabled and disabled using software control
5
6
7
Fr
eescale S
emiconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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