TC5747 Datasheet, PDF (32/44 Pages) List of Unclassifed Manufacturers – Single Chip CMOS Imager with Integrated Image Signal Processor and JPEG Codec

TC5747 Data Sheet
Single Chip CMOS Imager
4.2.9 Serial Output Mode
The Transmitted data size for Serial output mode is 8 bits per transmitted “ word” . Bayer output provides 8
bits per pixel, and YUV and RGB output provides 16 bits per pixel. The bytes are sent with the MSB first,
LSB last. During continuous transfer, the MSB of byte N immediately follows the LSB of byte (N-1).
The TC5747 serial output interface can be configured to work in two different modes:
Clock-qualify mode – A two wire interface with clock and output data signals. The TC5747 acts as a
master of the interface. It activates the serial clock signal when there is valid data to be sent out.
SSI mode – A three wire interface, with clock, output data and frame signals. The TC5747 acts as a
master of the interface, producing all three signals.
4.2.9.1 Clock-Qualify Mode
The serial interface consists of two pins:
DSCLK – Data Serial Clock output pin –1X or 2X the rate of the data output TC5747 generates
DSCLK signal from its general clock input signal.
DSDAT – Serial Data output pin.
The TC5747 acts as a master of the interface. It activates the serial clock signal when there are valid data to
be sent out.
Serial Clock Polarity – Clock is inactive at zero
Serial Clock Phase – Drive data on positive edge of Serial clock signal (DSCLK/2), latch on negative
edge
Figure 18: Serial Data-Out Interface – x2_clk_out = 1
Figure 19: Serial Data-Out Interface – x2_clk_out = 0
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