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MC68HC08AZ32 Datasheet, PDF (177/424 Pages) Motorola, Inc – Advance Information | |||
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Freescale Semiconductor, Inc.
Serial Communications Interface Module (SCI)
Functional description
To verify the start bit and to detect noise, data recovery logic takes
samples at RT3, RT5, and RT7. Table 4 summarizes the results of
the start bit verification samples.
Table 4. Start bit veriï¬cation
RT3, RT5, and RT7 samples
000
001
010
011
100
101
110
111
Start bit verification
Yes
Yes
Yes
No
Yes
No
No
No
Noise flag
0
1
1
0
1
0
0
0
If start bit verification is not successful, the RT clock is reset and a
new search for a start bit begins.
To determine the value of a data bit and to detect noise, recovery logic
takes samples at RT8, RT9, and RT10. Table 5 summarizes the
results of the data bit samples.
13-sci
MOTOROLA
Serial Communications Interface Module (SCI)
For More Information On This Product,
Go to: www.freescale.com
MC68HC08AZ32
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