Motorola PL3307, Integration Manual

Page: 35 / 336

Installation and Specifications 2 - 9
Electrical Interface
Table 2-2 and Table 2-3 list the pin functions of the imager engine and PL3307 interfaces, and illustrate typical
input and output circuitry.
NOTE Signal directions are listed relative to PL3307 decoder module.
Table 2-2
Imager Engine Signal Descriptions
Signal Name Description Dir
Engine
Interface
Comments
GND Power supply - 1 PL3307 power supply return
GND Power supply - 2 PL3307 power supply return
I2C_CLK Communication interface Out 3
PL3307 I
2
C Clock
I2C_DATA Communication interface In/
Out
4
PL3307 I
2
C Data
VSYNC Vertical sync synchronized to a
WVGA frame In 5 Vertical sync clock from the PL3307
PIX_DATA_7 Pixel data In 6 Pixel data from the PL3307 (MSB)
PIX_DATA_6 Pixel data In 7 Pixel data from the PL3307
PIX_DATA_5 Pixel data In 8 Pixel data from the PL3307
PIX_DATA_4 Pixel data In 9 Pixel data from the PL3307
PIX_DATA_3 Pixel data In 10 Pixel data from the PL3307
PIX_DATA_2 Pixel data In 11 Pixel data from the PL3307
PIX_DATA_1 Pixel data In 12 Pixel data from the PL3307
PIX_DATA_0 Pixel data In 13 Pixel data from the PL3307 (LSB)
EXT_ILLUM_EN Illumination enable In 14 Enable external illumination
VCC_SENSOR Power supply - 15 Decoder provided 3.3V for PL3307
image sensor and oscillator
VCC Power supply - 16 Decoder provided 3.3V for PL3307
logic and laser control system
VCC_ILLUM Power supply - 17 Decoder provided 3.3 to 5V for
PL3307 illumination system
HSYNC Horizontal sync synchronized
to the rows of the image data In 18 Horizontal sync clock from the
PL3307
GND Power supply - 19 PL3307 power supply return
PIXCLK Pixel clock used to synchronize
the decoder to the pixel data In 20 Pixel clock returned from the
PL3307
GND Power supply - 21 PL3307 power supply return
Note: Signal directions are listed relative to the PL3307 decoder module.