STV3550 datasheet(103/144 Pages) STMICROELECTRONICS

Part #	STV3550

Description	LCD and Matrix Display TV Processor

PDF	144 Pages

Scroll/Zoom	100%

Manufacturer	STMICROELECTRONICS [STMicroelectronics]

Direct Link	http://www.st.com

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STV3550

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the value has changed between the previous and current values, then an edge is detected. This is

illustrated in Figure 66.

7.7.8

Receive Data Sampling

The data received by the SSC2 is sampled after the latching edge of the input clock. The latching

edge being determined by the programming of the polarity and phase bits.

The data value which is finally latched is determined by taking 3 data samples at the 3rd, 4th and

5th system clock periods after the latching data edge. The data value is determined from the

predominant data value in the 3 samples. This therefore gives an element of spike suppression.

The sampling process is shown in Figure 67.

Figure 66: Clock Edge Detection (Rising Edge)

Figure 67: Receive Data Sampling

System Clock

Serial_Clock_In

Sampling

Points

First 3 samples

Majority 0

Last 3 samples

Majority 1

System Clock

Serial_Clock_In

Sampling

Points

Latched Data

Value

STV3550 Datasheet(PDF) 103 Page - STMicroelectronics