平台介绍

产品简介

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1. 概述

SpacemiT Key Stone® K1是一款高性能、超低功耗的SoC，集成了8个RISC-V CPU核心和SpacemiT® Daoyi™ AI计算能力。它具备以下最重要的优势：

  • 与SpacemiT®自创新的X60™ RISC-V核心处理器集成，该处理器遵循RISC-V 64GCVB架构和RVA22标准

  • 能够通过利用定制的RISC-V指令实现2.0 TOPS的AI计算能力，实现CPU人工智能融合计算

  • 支持流行的人工智能推理框架，如 TensorFlow Lite、TensorFlow 和 ONNX Runtime

  • 通过采用多粒粒级功率岛和动态功率状态调整实现超低功耗，使K1在能效方面具有高度竞争力

  • 提供支持创新应用和产品的全功能接口

  • 兼容主流作系统以满足各种应用场景的需求

  • 符合工业级可靠性标准

2. 特征

Application Processor (AP)

  • SpacemiT® X60™ RISC-V Dual-Cluster 8-Core Processor

  • Adherence to the RISC-V 64GCVB architecture and RVA22 standard

  • Cluster 0

    • Quad-Core with 2.0 TOPS AI computing power

    • 32K L1-Cache per core

    • 512K L2-Cache

    • 512KB TCM

    • 256bit vector

  • Cluster 1

    • Quad-Core

    • 32K L1-Cache per core

    • 512K L2-Cache

    • 256bit vector

  • DVFS with adaptive operating voltage from 0.6V to 1.05V

DDR Memory

  • Dual-Chip selection, 32-bit LPDDR4/LPDDR4x SDRAM with 2666 Mbps transfer rate, supporting up to 16GB of RAM

  • Dual-Chip selection, 32-bit LPDDR3 SDRAM with 1866 Mbps transfer rate, supporting up to 4 GB of RAM

RCPU (Real-Time CPU)

  • SRAM 256KB x1

  • R_CAN-FD x1

  • R_I2C x1

  • R_SPI x2

  • HDMI Audio

  • R_Debug

  • R_UART x2

  • R_PWM x10

  • DMA x1

  • R_IR_RX x1

Peripheral Controller

  • GPIO (×128)

    • 128 pins

    • Pull-up/pull-down programmable

    • 104x 1.8V IO8

    • 24x 1.8V/3.3V IO

  • UART (×10)

    • AP/BT/print

  • I2C (×10)

    • For camera, G-Sensor, E-COMPASS, Proximit-Sensor, Light-Sensor, Gyro, Fingerprint, NFC, PMIC, Touch, etc.

    • 8x AP_I2C (AP I2C0/1/7 dedicated for camera) + 1x HDMI I2C + 1x PWR I2C

  • SPI (×4)

    • Support for both master and slave mode

    • For IMU, codec etc.

    • Platform with 4 SPI (1x QSPI, 1x SPI LCD, 2x SPI)

  • USB (×3)

    • USB 2.0 OTG

    • USB 2.0 Host

    • USB 3.0 (combo PCIE PortA)

  • PCIE (×3)

    • PCIE PortA Gen2x1

    • PCIE PortB Gen2x2

    • PCIE PortC Gen2x2

  • GMAC (×2)

    • 10/100/1000 Mbps

    • RGMII

  • SDIO (×1 for WIFI)

    • Compatible with 4-bit SDIO 3.0 UHS-I protocol, up to SDR104 (208MHz)

  • SD (×1 for TF card)

    • Compatible with 4-bit SD 3.0 UHS-I protocol, up to SDR104 (208MHz)

  • eMMC (×1)

    • Compatible with 8bit eMMC5.1, up to HS400 (200MHz)

  • MIPI CSI (CSI-2 v1.1) 4-Lane (×2)

    • 4-Lane + 4-Lane mode

    • 4-Lane + 2-Lane mode

    • 4-Lane + 2-Lane + 2-Lane mode (triple sensor)

  • MIPI DSI (DSI v1.1) (×1)

    • 4-Lane DSI

  • PWM (×20)

  • CAN-FD (×1)

  • IR-RX (×1)

  • Security System

    • RISC-V PMP Security

    • Secure Boot

    • Secure eFuse 4K bits

    • Cryptographic engine (TRNG, AES, RSA, ECC, SHA2, HMAC)

  • Debug System

    • Two JTAGs for both CPU and MCU subsystem

    • UARTs

    • CPU/IO register snapshot after watchdog reboot

  • Boot System

    • Initial AP boot from SPI-Nand/SPI-NorFlash/eMMC/SD

    • 128KB boot-ROM

  • Aided System

    • Watchdog design for each CPU/MCU subsystem

  • Operating Temperature

    • -40°C ~ +85°C (Industrial Standard)

3. 多媒体功能

GPU

  • IMG BXE-2-32@819MHz, 32KB SLC

  • Support for OpenCL3.0/OpenGL ES 3.2/Vulkan1.3

VPU (Video Processing Unit)

  • H.265/H.264/VP8/VP9/MPEG4/MPEG2 decoder 4K@60fps

  • H.265/H.264/VP8/VP9 encoder 4K@30fps

  • Support for simultaneous encoding and decoding at 1080P@60fps

  • Support for simultaneous H264/H265 encoding at 1080P@30fps and H264/H265 decoding at 4K@30fps

Display

  • 1 MIPI DSI-4 lane or SPI interface

  • Support for up to Full HD (1920x1080@60fps)

  • Support for up to 4-full-size-layer composer and maximum 8-layer composer by up-down layer reuse in RDMA channel

  • Support for cmdlist mechanism which can configure register parameters by hardware

  • Support for concurrent write-back with both raw and AFBC format

  • Support for dither/crop/rotation in write-back path

  • Support for an advanced MMU (virtual address) mechanism with nearly no page missing in 90/270 degree rotation

  • Support for color key and solid color

  • Support for both advanced error diffusion and pattern based dither for panel

  • Support for both raw and AFBC format image source

  • Support for color saturation/contrast enhancement

  • Support for both video mode and cmd mode for panel

  • Support for DDR frequency dynamic changing with embedded DFC buffer

  • HDMI 1.4

Camera

  • Dual-ISP

    • 16M (max) 30fps Dual ISP

    • One 4-Lane CSI + one 4-Lane CSI, or 4-Lane + 2-Lane + 2-Lane

    • RAW sensor, output YUV data to DRAM

    • Hardware JPEG encoder, supporting up to 23M

    • Support for YUV/EXIF/JFIF format

    • AF/AE/AWB

    • Face detection

    • Digital zoom, panorama view

    • PDAF

    • PiP (Picture-in-Picture)

    • Continuous video AF

    • HW 3D denoise

Audio

  • 2 × Full-Duplex I2S Interfaces

  • 1 × HDMI Audio Interface

4. 应用场景

  • 应用于工业网关、机器人、鸿蒙平板等领域，支持3D空间计算、语音识别等复杂任务

5. 方块图

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