QUEUED SERIAL MODULE
MC68332
6-24
USER’S MANUAL
Figure 6-8 SCI Receiver Block Diagram
0
LOOPS
WOMC
ILT
PT
PE
M
WAKE
RIE
ILIE
TE
RE
RWU
SBK
TIE
TCIE
SCCR1 (CONTROL REGISTER 1)
0
15
FE
NF
OR
IDLE
RDRF
TC
TDRE
SCSR (STATUS REGISTER)
PF
RAF
15
0
WAKEUP
LOGIC
PIN BUFFER
RxD
STOP
(8) 7
6
5
4
3
2
1
0
10 (11) - BIT
Rx SHIFT REGISTER
START
MSB
ALL ONES
DATA
RECOVERY
÷
16
PARITY
DETECT
RECEIVER
BAUD RATE
CLOCK
SCDR Rx BUFFER
(READ-ONLY)
SCI Tx
REQUESTS
SCI INTERRUPT
REQUEST
INTERNAL
DATA BUS
L
H
68300 SCI RX BLOCK
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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