Freescale Semiconductor MC68332 - Page 147

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)
015
FE
NF
OR
IDLE RDRF
TC TDRE
SCSR (STATUS REGISTER)
PF
RAF
15 0
WAKEUP
LOGIC
PIN BUFFERRxD
STOP
(8)76543210
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
LH
68300 SCI RX BLOCK
Fr
ees
cale S
em
iconduct
or
, I
Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
nc...