M68HC16 Z SERIES
QUEUED SERIAL MODULE
USER’S MANUAL
9-23
Figure 9-11 SCI Receiver Block Diagram
16/32 SCI RX BLOCK
0
LOOPS
WOMS
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
WAKE-UP
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
F
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e
sc
a
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S
e
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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