Freescale Semiconductor, Inc.
Serial Communications Interface (SCI)
SCDR ($0011)
1X
TRANSMIT SHIFT REGISTER
BAUD RATE
CLOCK
PIN BUFFER
AND CONTROL
PD1/
TDO
H 8
7
6
5
4
3
2
1
0
L
)
)
R
E
s
s
B
S
E
MO
L
L
R
F
L
L
A
A
TRANSMITTER
CONTROL LOGIC
SCSR ($0010)
SCCR1 ($000E)
TDRE
TIE
TC
TCIE
SCI RECEIVE
REQUESTS
SCCR2 ($000F)
SCI INTERRUPT
REQUEST
Figure 10-2. SCI Transmitter
Technical Data
124
MC68HC705C8A — Rev. 3
Serial Communications Interface (SCI)
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