全志D1芯片简介，首款基于玄铁C906 RISC-V架构的通用型处理器 |ScenSmart|OEM|ODM|行业方案

全志D1是一款基于RISC-V架构的处理器，也是全球首款基于玄铁C906开发的通用型SoC。D1集成了64位玄铁C906 RISC-V CPU和HiFi4 DSP，提供高效的计算能力。运行Linux系统，稳定高效，方便二次开发。D1支持H.265、H.264、MPEG-1/2/4、JPEG、VC1等全格式解码。独立的编码器可以用JPEG或MJPEG进行编码。集成的多adc/dac和I2S/PCM/DMIC/OWA音频接口可以与CPU无缝配合，加速多媒体算法，改善用户体验。D1支持RGB/LVDS/MIPI DSI/HDMI/CVBS OUT显示输出接口，满足不同屏幕显示的要求。D1具有广泛的连接和接口，如USB、SDIO、EMAC、TWI、UART、SPI、PWM、GPADC、LRADC、TPADC、IR TX和RX等。此外，D1还可以通过SDIO和UART与其他不同的外围设备（如WiFi和BT）连接。

Allwinner D1接口框图

全志D1应用框图

CPU

• 玄铁 C906 RISC-V CPU
• 32 KB I-cache + 32 KB D-cache

Memory

• DDR2/DDR3, up to 2 GB
• SD3.0/eMMC 5.0, SPI Nor/Nand Flash

Video Engine

Video decoding
• H.265 up to 1080p@60fps, or 4K@30fps
• H.264 up to 1080p@60fps, or 4K@24fps
• MPEG-1/2/4, JPEG, VC1 up to 1080p@60fps

Video encoding
• JPEG/MJPEG up to 1080p@60fps
• Supports input picture scaler up/down

DSP

• HiFi4 DSP
• 32 KB I-cache + 32 KB D-cache
• 64 KB I-ram + 64 KB D-ram

Video OUT

• RGB LCD output interface up to 1920 x 1080@60fps
• Dual link LVDS interface up to 1920 x 1080@60fps
• 4-lane MIPI DSI interface up to 1920 x 1080@60fps
• HDMI V1.4 output interface up to 4K@30fps
• CVBS OUT interface, supporting NTSC and PAL format

Video IN

• 8-bit parallel CSI interface
• CVBS IN interface, supporting NTSC and PAL format

Display Engine

• Allwinner SmartColor2.0 post processing for an excellent display experience
• Supports de-interlace (DI) up to 1080p@60fps
• Supports G2D hardware accelerator including rotate, mixer, lbc decompression functions

Audio

• 2 DACs and 3 ADCs
• Analog audio interfaces: MICIN1P/N, MICIN2P/N, MICIN3P/N, FMINL/R, LINEINL/R, LINEOUTLP/N, LINEOUTRP/N, HPOUTL/R
• Digital audio interfaces: I2S/PCM, DMIC, OWA IN/OUT

Connectivity

• USB2.0 OTG, USB2.0 Host
• SDIO 3.0, SPI x 2, UART x 6, TWI x 4
• PWM (8-ch), GPADC (2-ch), LRADC (1-ch), TPADC (4-ch), IR TX&RX
• 10/100/1000M EMAC with RMII and RGMII interfaces