参数资料
型号: MC68HC05C9ACFB
厂商: FREESCALE SEMICONDUCTOR INC
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 2.1 MHz, MICROCONTROLLER, PQFP44
封装: PLASTIC, QFP-44
文件页数: 136/160页
文件大小: 4128K
代理商: MC68HC05C9ACFB
Serial Communications Interface (SCI)
Receive Data In (RDI)
MC68HC05C9A Rev. 4.0
General Release Specification
Serial Communications Interface (SCI)
NON-DISCLOSURE
AGREEMENT
REQUIRED
Figure 9-4. SCI Examples of Start Bit Sampling Techniques
Figure 9-5. SCI Sampling Technique Used on All Bits
1
0000
111111110
0
1
0
1
0
1
0000
NOISE
START
RDI
IDLE
1RT
2RT
3RT
4RT
5RT
6RT
7RT
RT CLOCK EDGES FOR ALL THREE EXAMPLES
16X INTERNAL SAMPLING CLOCK
9RT
8RT
10RT
16RT 1RT
SAMPLES
NEXT BIT
PREVIOUS BIT
RDI
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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