MC68HC708AS48

Manufacturer Part NumberMC68HC708AS48
DescriptionAdvance Information
ManufacturerFREESCALE [Freescale Semiconductor, Inc]
MC68HC708AS48 datasheet
 


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To verify the start bit and to detect noise, data recovery logic takes
samples at RT3, RT5, and RT7.
the start bit verification samples.
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.
results of the data bit samples.
MC68HC708AS48
Rev. 4.0
MOTOROLA
Table 17-1
Table 17-1. Start Bit Verification
RT3, RT5, and RT7
Samples
000
001
010
011
100
101
110
111
Table 17-2. Data Bit Recovery
RT8, RT9, and RT10
Samples
Determination
000
001
010
011
100
101
110
111
Serial Communications Interface (SCI)
Serial Communications Interface (SCI)
Functional Description
summarizes the results of
Start Bit
Noise Flag
Verification
Yes
0
Yes
1
Yes
1
No
0
Yes
1
No
0
No
0
No
0
Table 17-2
summarizes the
Data Bit
Noise Flag
0
0
0
1
0
1
1
1
0
1
1
1
1
1
1
0
Advance Information
259