Allwinner MR133 Processor Targets Robot Vacuum Cleaners

It’s been a while since I’ve seen a new processor from Allwinner, so today I got curious and visited the company website hoping to find maybe some news about the first Cortex-A7x processor from the company. But instead I found something else intriguing with the new Allwinner MR133 processor specifically designed for “SLAM/VSLAM intelligent robot sweeper solutions”. In other words, Allwinner has just launched a processor for robot vacuum cleaners…

Allwinner MR133

Allwinner MR133 key features and specifications:

  • CPU – Quad-core Arm Cortex-A7 processor @ 1.8GHz with 32KB L1 I-cache + 32KB L1 D-cache per core, 512KB L2 cache, low-power CoolFlex power management architecture
  • GPU – Arm Mali 400MP2 with support for OpenGL ES 2.0/1.1, Direct3D 11.1, OpenVG 1.1
  • Memory I/F – 32-bit DDR4/DDR3/DDR3L/LPDDR3/LPDDR4
  • Storage I/F –
    • eMMC 5.0 flasj, compatible with eMMC 5.1, support Full Disk Encryption(FDE)
    • 8-bit TLC/MLC/SLC/EF NAND flash, supports FDE
    • LDPC/80-bit BCH/1024bytes
  • Video Engine – H264 HP encoder 1080p @ 60fps, JPEG encoder up to 4096 x 4096
  • Video Input – MIPI-CSI2 V1.00 and MIPI DPHY V1.00.00 up to 13M @ 15fps, or 8M @ 30fps with 4 data lanes
  • ISP – Up to 4224×3168 resolution with adjustable 3A functions, including automatic exposure(AE), automatic white balance(AWB) and automatic focus (AF)
  • Audio
    • 2x audio DAC and 1x audio ADC
    • 3x analog audio inputs and 1x analog audio output
    • Capless stereo headphone driver
    • Up to 2x I2S/PCM controllers for connecting Bluetooth and external audio codec
    • Integrated digital microphone, supports maximum 8 digital microphones
  • USB – USB Host, USB 2.0 OTG
  • Peripherals
    • SDIO 3.0, RSB
    • 4 x TWI, 2 x SPI
    • 6 x UART, 3 x PWM
  • Security Engine – AES,DES,3DES,XTS summetrical algorithms, MD5,SHA,HMAC hash, RSA, ECC Pubic Key algorithms, 160-bit hardware PRNG, 256-bit hardware TRNG, 2.5K-bit EFUSE for chip ID and security applicationConnectivity
  • PMIC – AXP2585 PMU, AXP15060 BMU
  • Package – FBGA 413balls,  12.3 x 12.8mm, 0.5 ball pitch, 0.3 ball size
  • Process – 28nm HPC

WiFi can be added to the chip via XR829 module or other wireless modules. The company provides Tina Linux and Android 8.1 for the processor. SLAM stands for Simultaneous Localization And Mapping, while VSLAM adds Visual to the acronym, and relies on images instead of lasers allowing for 3D mapping.

Allwinner is apparently still operating the company through 4 or 5 business units, where the same processor is used by various units under a different name and supported by a different SDK, because the product page for Allwinner MR133 appears to be filled with the exact same content as the product page for Allwinner R311, except the latter is designed for “intelligent voice interaction with screen, image recognition solutions”.

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