Main Function

  • Model:T582DB
  • Applications:Video Door Phone(high-end)
  • Digital Inputs:CCIR656/601
  • Analog Inputs:CVBS
  • Digital Output Signal:sRGB,RGB888,i80 Master. Support up to 800x600
  • OSD:8K-word SRAM,SPI-OSD TWBC Compression
  • MCU:32-bit MIPS
  • Other Peripherals:SAR,I2C,UART,SPI NOR flash,SD card
  • Package:LQFP 128-pin


  • 32-bit RISC CPU with MMU
  • -System control
    -Support 16-bit instruction set for smaller code foot-print
    -EJTAG interface for S/W development

  • Memory subsystem
  • -Built-in 88K-byte SRAM for fast code execution
    -SPI NOR flash controller
      ➢Support code eXecution-In-Place(XIP) for smaller foot-print in SRAM
      ➢Can store snapshots
    -No SDRAM needed to save system cost

  • SD/MMC card interface controller
  • -SD card supports up to 32GB SDHC
    -Optimized FAT support for robust and reliable file access.
      ➢The file can keep intact when sudden power failure.
      ➢Quick file change when recording (less than 0.5 seconds)

  • On-chip peripherals
  • -Interrupt controller, System Timer, Watch-Dog Timer
    -UART*2, one with hardware flow control
      ➢to connect/control additional sensors, like g-sensor(acceleromter), GPS-mouse, etc.
    -I2C master/slave modes
    -SAR for keypads

  • System (Power) Management Unit
  • -Dynamic Clock frequency adjustment to save power consumption
    -Operation, Suspend, Shutdown mode.
    -Built-in Real-Time Clock (RTC) for embedding wall clock in record MJPEG.

  • Hardwired JPEG, MJPEG encoder
  • -Support 720x480 30fps on-the-fly.
    -Support embedding RTC time to JPEG directly.
    -Support saving to SD storage directly and with standard FAT format

  • Hardwired JPEG, MJPEG decoder
  • -Support up to 720x480 30fps

  • Simple Motion Detection
  • -Support motion detection either through digital CCIR input or analog CVBS input
    -Triggered event point can be saved in MJPEG file

  • i80 Slave mode
  • -Used as slave to be cascaded to other platform

  • On Screen Display(OSD)
  • -Support 1/2/4/8 bits/pixel
    -8K-word OSD2 memory
    -Supports text or bitmap modes
    -Subpixel type support for Smart Font Rendering
    -Supports character blinking and overlay functions
    -Fully programmable character mapping
    -Supports alpha blending & Zoom-in/Zoom-out function
    -Built-in 114+ fonts (12 x18, 16 x24 each)
    -Pattern-Filled background
    -Optional fonts stored in off-chip serial ROM
    -Supports free run OSD mode

  • SPI Flash Based On Screen Display Engine
  • -Support bitmap background images on SPI NOR flash, and having various transition effects. Also support Terawins Bitmap Compression(TWBC) to save storage space 50%
    -Support Sprite layer for animation icon
    -Standard RGBA 8888 index color palette with two lookup tables

  • Display processor with Scalar and OSD
  • -Supports one channel 10-bits ADC for CVBS
    -Supports digital CCIR656 or 8-/16-bits CCIR601 for CMOS sensors
    -Live view on panel while encoding
    -Independent Horizontal/Vertical Scaling Up/Down, non-linear FIR scaling for 16:9 ⇔ 4:3 conversion
    -Image enhancement includes sharpness, BLE, DLTi, contrast, brightness, DCTi, hue, saturation, ….
    -Build-in patterns generator, Gamma correction, Dithering
    -Timing controller for LCD panel
    -Supported Panel types:
      ➢i80 vsync and command modes
      ➢Single channel TTL (Digital RGB, 6 or 8 bits) panel with TCON
      ➢Serial RGB panel
    -Resolution supports up-to 800x600 with full screen OSD
    -DC-DC convert, LED/CCFL backlight convert, Open Lamp protection