参数资料
型号: MC68HC11D3CP
厂商: MOTOROLA INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, 2 MHz, MICROCONTROLLER, PDIP40
封装: DIP-40
文件页数: 98/131页
文件大小: 1640K
代理商: MC68HC11D3CP
MC68HC11D3
SERIAL COMMUNICATIONS INTERFACE
MOTOROLA
TECHNICAL DATA
7-3
recovery scheme distinguishes valid data from noise in the serial data stream. The
data input is selectively sampled to detect receive data, and a majority voting circuit
determines the value and integrity of each bit.
Figure 7-2 SCI Receiver Block Diagram
11 SCI RX BLOCK
FE
NF
OR
IDLE
RDRF
TC
T
DRE
SCSR SCI STATUS 1
SBK
RWU
RE
TE
IL
IE
RIE
TC
IE
TI
E
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
ST
O
P
(8) 76543210
10 (11) - BIT
Rx SHIFT REGISTER
(READ ONLY)
SCCR1 SCI CONTROL 1
RIE
RDRF
ST
A
R
T
MSB
ALL ONES
DATA
RECOVERY
÷16
RWU
RE
M
DISABLE
DRIVER
RECEIVER
BAUD RATE
CLOCK
8
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