WT8931
The WT8931 is a high performance image processor which incorporates a 32-bit RISC CPU with DSP instruction set that operates up to 180 MHz and optimized for image sensors with MIPI interface. In addition, the WT8931 embeds a hardware image processor unit (IPU) and supports input resolution up to 8 megapixels, providing real-time and superior visibility technology for camera applications. The WT8931 requires few external components and can be easily integrated into a camera module. It thus simplifies the system hardware design and shortens the time to market of the end product.
Features
- Embedded 32-bit RISC CPU core
- DSP instruction set
- Up to 180 MHz operation frequency
- Memory
- Embedded serial flash 2MB
- Internal 8KB I-cache
- Internal 48KB DLM
- Video inputs
- MIPI CSI-2 (support virtual channel up to 3) 4 lanes, data rate up to 1Gbps/lane
- Max. resolution: 640x480@360fps, 2M@60fps, 2M@30fps(w/ IPU HDR, 2:1 Exp), 3M@30fps, 4M@30fps, 5M@25fps, 8M@15fps(w/ sensor HDR)
- Data formats : 8/10/12/14/16-bit Bayer RAW, YUV 4:2:2 8-bit
- RGB-IR
- Video outputs
- MIPI CSI-2 4 lanes
- Max. resolution: 8M@15fps
- Bayer output follow input format, YUV 4:2:2 8-bit
- Image Processing Unit (IPU)
- Automatic Exposure Control(AEC)
- Automatic Gain Control(AGC)
- Auto White Balance(AWB)
- Black Level Compensation
- Lens Shading Correction
- Spatial Domain Denoise
- HDR Stitch
- WDR Local Tone Mapping
- Edge Enhancement
- Bayer Patten Interpolation (Color Interpolation)
- Color Correction Matrix
- Gamma
- YUV Processing (for brightness, contrast, saturation, and hue processing)
- Communication interfaces
- ISP and ICE interface
- 2 master/slave mode I2C interfaces up to 400 kHz
- 1 full-duplex UART up to 1.5 MHz
- 1 master/slave SPI up to 12 MHz
- Timer with 16-bit prescaler
- GPIOs with configurable input/output direction and pull-up/pull-down resistor
- Window Watchdog Timer (WWDT)
- CPU clock source
- External crystal oscillator 24 MHz (built-in PLL)
- Power consumption
- Operating: < 0.40W (2M@30fps)
- Standby current: <1mA
- Power supply 3.0V ~ 3.6V
- Core power supply 1.08V ~ 1.32V
- Host I/O power supply 3.0V ~ 3.6V
- Sensor I/O power supply 1.6V ~ 3.6V
- Operating temperature range: -40℃ ~ +85℃
- Package type: QFN-64L (9x9)
- Memory
- Embedded 32-bit RISC CPU core
應用領域
