偉詮電子宣布推出WT8911智慧鏡頭處理器，它是一款適用於先進駕駛輔助系統(ADAS)的解決方案，此方案具精簡及低能耗特性，可整合至車用鏡頭模組。

WT8911為一高效能先進駕駛輔助系統(ADAS)處理器，內含可運行達200MHz的 32位元精簡指令集的CPU/DSP，另有完整豐富的視覺處理功能及介面，包含縮放器(scaler)、扭曲校正、影像遮罩(image mask)、光流偵測等功能。ADAS功能包括車道偏移警示(Lane-Departure Warning, LDW)、移動物偵測(Moving-Object Detection, MOD)、盲點偵測(Blind-Spot Detection, BSD)、後方防碰撞警示系統 (Rear-Collision Warning, RCW) 等等。 

WT8911採用小尺寸的BGA封裝技術，適合應用於須整合視覺處理器的車用智慧鏡頭。它還可以做為WT8893S 環車影像(AVM)處理器的協處理器、進行ADAS影像偵測工作確保駕駛者的行車安全。WT8911已通過汽車電子委員會(AEC) Q100 (Grade 2)驗證規範。 
偉詮的WT8911智慧鏡頭處理器主要的功能包含: 
● 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)

需要更多資訊請洽詢幸賀產品經理 廖先生(Bruce Liao)，Tel: (02)6615-8281 ext. 245 or email to bruceliao@seraphim.com.tw

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