M68HC16 Z SERIES
MULTICHANNEL COMMUNICATION INTERFACE
USER’S MANUAL
10-15
Figure 10-6 SCI Receiver Block Diagram
MCCI SCI RX BLOCK
SCCR1 (CONTROL REGISTER 1)
0
LOOPS
ILT
RECEIVER
L
0
1
2
3
4
5
6
7
(8)
H
STOP
10 (11) - BIT RX SHIFT REGISTER
START
INTERNAL
DATA BUS
15
0
WOMS
PT
PE
M
WAKE
TIE
TCIE
RIE
ILIE
TE
RE
RWU
SBK
SCSR (STATUS REGISTER)
15
0
TDRE
TC
RDRF
RAF
IDLE
OR
NF
FE
PF
SCI TX
REQUESTS
SCI INTERRUPT
REQUEST
BAUD RATE
CLOCK
÷
16
RXD
PIN BUFFER
DATA
RECOVERY
PARITY
DETECT
WAKE-UP
LOGIC
SCDR RX BUFFER
MSB
ALL ONES
(READ ONLY)
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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