MCCIRM Freescale Semiconductor / Motorola, MCCIRM Datasheet - Page 79

• Manufacturer Part Number: MCCIRM
• Description: MCCIRM Multi-Channel Communications Interface Reference Manual
• Manufacturer: Freescale Semiconductor / Motorola

5.7.11.3 Start Bit Recognition Examples
Multichannel Communication Interface — Rev. 1.0
MOTOROLA
The operation of the receiver bit processor is shown in the following
figures. These examples demonstrate the search for a valid start bit and
the synchronization procedure as outlined. The possibility of noise
durations greater than one bit time are not considered in these
examples.
Figure 5-4
being restarted because the first low detected was determined to be
noise rather than the beginning of a start bit time. Since the noise
occurred before the start bit was found, it will not cause the internal noise
flag to be set.
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Freescale Semiconductor, Inc.
RESTART RT CLOCK
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RESTART RT CLOCK
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For More Information On This Product,
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Figure 5-3
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shows the start bit search and resynchronization process
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Go to: www.freescale.com
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Figure 5-3. Start Search Example 1
Figure 5-4. Start Search Example 2
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SCI Submodule
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illustrates the ideal case with no noise present.
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PERCEIVED START BIT
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ACTUAL START BIT
ACTUAL START BIT
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Reference Manual
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