mc68hc11a1vp Freescale Semiconductor, Inc, mc68hc11a1vp Datasheet - Page 24

• Manufacturer Part Number: mc68hc11a1vp
• Description: 8-bit Microcontrollers
• Manufacturer: Freescale Semiconductor, Inc

24
MOTOROLA
BAUD RATE
RECEIVER
CLOCK
REQUESTS
SCI Tx
PD0
RxD
SCCR1 SCI CONTROL 1
SCI INTERRUPT
AND CONTROL
PIN BUFFER
REQUEST
DDD0
DISABLE
DRIVER
WAKEUP
LOGIC
RE
M
Figure 7 SCI Receiver Block Diagram
RECOVERY
RDRF
RIE
IDLE
ILIE
OR
RIE
DATA
16
SCSR SCI STATUS 1
SCCR2 SCI CONTROL 2
(8) 7 6 5 4 3 2 1 0
Rx SHIFT REGISTER
RWU
10 (11) - BIT
MSB
8
SCDR Rx BUFFER
INTERNAL
DATA BUS
8
8
MC68HC11A8TS/D
(READ ONLY)
ALL ONES
MC68HC11A8
11 SCI RX BLOCK