MC68HC711D3_05 Datasheet, PDF (67/138 Pages) Freescale Semiconductor, Inc – Microcontrollers

16X
BAUD RATE
CLOCK
PD0
RxD
DDD0
÷16
PIN BUFFER
AND CONTROL
DATA
RECOVERY
DISABLE
DRIVER
RE
Receive Operation
10 (11) - BIT
Rx SHIFT REGISTER
(8) 7 6 5 4 3 2 1 0
MSB
ALL 1s
M
WAKEUP
LOGIC
RWU
SCCR1 SCI CONTROL 1
SCSR SCI STATUS 1
RDRF
RIE
IDLE
ILIE
OR
RIE
SCDR Rx BUFFER
(READ ONLY)
SCCR2 SCI CONTROL 2
SCI Tx
REQUESTS
SCI INTERRUPT
REQUEST
Figure 6-2. SCI Receiver Block Diagram
INTERNAL
DATA BUS
MC68HC711D3 Data Sheet, Rev. 2.1
Freescale Semiconductor
67