RK3399

Rockchip ARM processor found on e.g. Orange Pi 4.

Specification

RK3399 block diagram. Source: [1]

• CPU:
  • Big.Little architecture: Dual Cortex-A72 + Quad Cortex-A53, 64-bit CPU
  • Frequency is over 1.8GHz (Big cluster)
  • L1 cache
    • 48KB Icache and 32KB Dcache for each A72
    • 32KB Icache and 32KB Dcache for each A53
  • L2 cache
    • 1024KB for big cluster
    • 512KB for little cluster
• Internal SRAM
  • 192KB total
  • 4KB used by bootrom when bootup
• GPU:
  •  Mali-T864 GPU, OpenGL ES1.1/2.0/3.0/3.1, OpenCL, DX11
  • Supports AFBC (ARM Frame Buffer Compression)
• Display:
  • Dual VOP: one supports 4096x2160 with AFBC supported；The other supports 2560x1600
  • Dual channel MIPI-DSI (4 lanes per channel)
  • eDP 1.3 (4 lanes with 10.8Gbps) to support display, with PSR
  • HDMI 2.0 for 4K 60Hz with HDCP 1.4/2.2
  • DisplayPort 1.2 (4 lanes, up to 4K 60Hz)
  • Supports Rec.2020 and conversion to Rec.709
• Camera:
  •  Dual mipi CSI，dual ISP,Maximum input resolution of 13M pixels
• Memory:
  • Dual channels 64-bit DRAM controller
  • Support DDR3/DDR3L, LPDDR3, LPDDR4
• Connectivity:
  • PCIe 2.1 (4 full-duplex lanes with 20Gbps)
  • Embedded low power MCU for other application
  • 8 channels I2S supports 8 channels RX or 8 channels TX

Source: [2]

There is a "hidden" low-power, low-cost Cortex-M0 MCU. It implements power-management functionality and helpers (e.g. DRAM frequency switching support). [3]

External

• Rockchip Wiki on RK3399 [4]