We’ve previously covered Hisilicon Hi3861V100 32-bit RISC-V microcontroller, but HiSilicon Hi3731V110 32-bit RISC-V processor designed for Full HD televisions, the company has gone up the scale with its RISC-V offerings.
The processor is equipped with an M-LVDS interface for TCON panels, CVBS output, YPbPr, VGA, and multiple HDMI 1.4 video inputs. The processor also comes with a 1080p30 VPU supporting H.265, H.264, MPEG4, MPEG2, and other codecs.
HiSilicon Hi3731V110 key specifications:
- 32-bit single-core RISC
- GPU – 2D graphics accelerator
- Memory – Integrated 512-Mbit DDR SDRAM
- Storage I/F – SPI flash support
- Video I/F
- 3x HDMI inputs with CEC, HDCP 1.4, up to 1080p60. Once supports ARC (See Audio)
- YPbPr/RGB interface
- CVBS output
- Video Decoding – 1080p30 H.265, H.264, H.263. MPEG2, MPEG4, VC1
- Image Decoding – JPEG hardware decoding up to 64 megapixels
- Analog TV
- IF Demodulation for – All analog TV standards, including M/N, B/G/H, D/K, I, L, and L’
- NTSC PAL SECAM video demodulation
- Interfaces – S/PDIF, HDMI ARC channel, 3x stereo inputs, 2x stereo outputs
- Multi-Format Audio Demodulation – SIF demodulation, NICAM, A2, EIA-J, and BTSC, etc…
- Audio sampling rate conversion, Volume, equalization, and mute control, surround audio, etc…
- Audio Decoding – DTS, MPEG L1/L2, MP3, AACLPCM, FLAC; options: Dolby Digital, Dolby Digital Plus
- HiSilicon Graphics Engine Hi Imprex VI Engine
- USB – 2x USB 2.0. host ports
- Security – AES data encryption and decryption
- Other I/Os – 1x IR receiver, 1x keypad interface, 1x I2C interface. 1x UART, GPIOs
The company further explains the processor is suitable for 2-layer PCB designs, supports various low power modes, as well as wakeup by HDMI or VGA. HiSilicon provides Huawei LiteOS real-time operating system for the processor, and we should not expect fancy user interfaces since there’s no 3D GPU, only a 2D GPU.
HiSilicon Hi3731V110 RISC-V processor will probably be reserved for entry-level televisions for mainland China and emerging markets. A few more details may be found on the product page.
Jean-Luc started CNX Software in 2010 as a part-time endeavor, before quitting his job as a software engineering manager, and starting to write daily news, and reviews full time later in 2011.