Datasheet

Receive Operation
MC68HC711D3 Data Sheet, Rev. 2.1
Freescale Semiconductor 67
Figure 6-2. SCI Receiver Block Diagram
FE NF OR IDLE RDRF TC TDRE
SCSR SCI STATUS 1
SBK RWU RE TE ILIE RIE TCIE TIE
SCCR2 SCI CONTROL 2
WAKE M T8 R8
WAKEUP
LOGIC
RIE
OR
ILIE
IDLE
SCI Tx
REQUESTS
SCI INTERRUPT
REQUEST
INTERNAL
DATA BUS
PIN BUFFER
AND CONTROL
DDD0
PD0
RxD
SCDR Rx BUFFER
STOP
(8)76543210
10 (11) - BIT
Rx SHIFT REGISTER
(READ ONLY)
SCCR1 SCI CONTROL 1
RIE
RDRF
START
MSB ALL 1s
DATA
RECOVERY
÷16
RWU
RE
M
DISABLE
DRIVER
16X
BAUD RATE
CLOCK