參數(shù)資料
型號: MC68HC05C9ACFB
廠商: FREESCALE SEMICONDUCTOR INC
元件分類: 微控制器/微處理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封裝: PLASTIC, QFP-44
文件頁數(shù): 138/160頁
文件大?。?/td> 4128K
代理商: MC68HC05C9ACFB
Serial Communications Interface (SCI)
Start Bit Detection
MC68HC05C9A Rev. 4.0
General Release Specification
Serial Communications Interface (SCI)
NON-DISCLOSURE
AGREEMENT
REQUIRED
Figure 9-6. SCI Artificial Start Following a Frame Error
Figure 9-7. SCI Start Bit Following a Break
DATA
EXPECTED STOP
DATA SAMPLES
ARTIFICIAL EDGE
START BIT
DATA
RDI
DATA
EXPECTED STOP
DATA SAMPLES
START EDGE
START BIT
DATA
RDI
a) Case 1: Receive line low during articial edge
b) Case 2: Receive line high during expected start edge
EXPECTED STOP
DATA SAMPLES
DETECTED AS VALID START EDGE
START BIT
RDI
BREAK
START
QUALIFIERS
START EDGE
VERIFICATION
SAMPLES
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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