MC68HC908JL8 MOTOROLA [Motorola, Inc], MC68HC908JL8 Datasheet - Page 183

• Manufacturer Part Number: MC68HC908JL8
• Description: Motorola reserves the right to make changes without further notice to any products herein
• Manufacturer: MOTOROLA [Motorola, Inc]

MC68HC908JL8
MOTOROLA
—
Rev. 2.0
To verify the start bit and to detect noise, data recovery logic takes
samples at RT3, RT5, and RT7.
the start bit verification samples.
Start bit verification is not successful if any two of the three verification
samples are logic 1s. 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.
Freescale Semiconductor, Inc.
For More Information On This Product,
Serial Communications Interface (SCI)
RT8, RT9, and RT10
RT3, RT5, and RT7
Go to: www.freescale.com
Samples
Samples
000
001
010
011
100
101
110
111
Table 11-2. Start Bit Verification
000
001
010
011
100
101
110
111
Table 11-3. Data Bit Recovery
Table 11-2
Determination
Verification
Start Bit
Data Bit
Yes
Yes
Yes
Yes
No
No
No
No
Serial Communications Interface (SCI)
Table 11-3
0
0
0
1
0
1
1
1
summarizes the results of
Noise Flag
Noise Flag
summarizes the
Functional Description
0
1
1
0
1
0
0
0
0
1
1
1
1
1
1
0
Technical Data
183