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ADAS SoC
ADAS SoC
WT8911
【 General Description 】
The WT8911 is a high performance smart camera processor for ADAS application which incorporates a 32-bit RISC CPU with DSP instruction set that operates up to 200MHz and rich vision-processing-units/interfaces such as scaler, lens correction, image mask, optical flow detection, and etc. It features ADAS functions such as LDW (Lane-Departure Warning), MOD (Moving-Object Detection), BSD (Blind-Spot Detection), RCW (Rear-Collision Warning), and etc.
With a small form factor BGA package, the WT8911 is perfect for smart camera for automotive application where the vision processor must be integrated into the camera module. As a stand-alone processor, the WT8911 can drastically reduce main ECU’s computing burden for time-sensitive ADAS computing. It can also act as a co-processor of WT8893S Around View Monitor (AVM) processor providing ADAS features to an AVM system. The WT8911 has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 2).
【 Features 】
● Embedded 32-bit RISC CPU core
  - Support external program memory with serial flash memory via 4-wire interface
  - DSP instruction set
  - Internal 32KB DLM
  - Internal 128KB ILM
  - AXI to APB bridge
● Memory
  - External serial flash
  - 10 optimized frame buffers for video data storage and CPU access
● Down sampling scaler with flexible scaling ratio (1 - 6)
  - Bilinear method
● Image mask (5x5 and 1x5) with user-defined coefficients
● Grid remap
● Perspective
● Optical flow
  - Lucas-Kanade (LK) optical flow algorithm
● Features from accelerated segment test (FAST) corner detection
● Connected component labeling (CCL)
● Histogram 1D/2D calculation with polygon shape (MAX2D)
● Optimized OpenVX engine
● Sum of absolute differences (SAD)
● Video inputs:
  - ITU-601 / ITU-656 / ITU-1120 YUV
  - Video formats: 720x480, 720x576, 1280x720p, 1920x1080p (30FPS)
● Video outputs:
  - ITU-601 / ITU-656 / ITU-1120 YUV
  - Video formats: 720x480, 720x576, 1280x720p, 1920x1080p (30FPS)
  - Analog CVBS output with internal video encoder
● Parking guideline drawing
● B/W stretch and histogram
● Brightness & contrast adjustment
● On screen display
● HD to SD resolution conversion
● Frame buffer display
● Communication interfaces
  - 1 master/slave mode I2C interfaces up to 400KHz
  - 1 master/slave SPI up to 12MHz
  - 2 full-duplex UART up to 1.5MHz
  - 1 CAN bus up to 1MHz
  - Interface for ISP and ICE
● Timer with 16-bit prescaler
● GPIO with configurable input / output direction and pull-up / pull-down resistor
● Window Watchdog Timer
● 2 PWM (buzzer)
● CPU clock source
  - External crystal oscillator 20MHz ~ 27MHz (built-in PLL)
● Operating temperature range: -40℃ ~ +105℃
● Package type:
  - VFBGA 112-ball (8 x 8 mm)
  - LQFP-128
● AEC-Q100:
  - This product has been qualified to the Automotive Electronics Council (AEC) standard Q100 (Grade 2)
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