1. Solution Description:
Sigmastar SSR931G is a highly integrated multimedia System-on-Chip (SoC) designed for high-resolution intelligent video recording and playback applications, such as Network Video Recorders (NVRs). It features a 64-bit quad-core ARM Cortex-A55 processor with a maximum clock speed of 1.2 GHz, a high-performance H.265/H.264/MJPEG video codec engine, an intelligent processing unit (IPU), and multiple high-speed I/O interfaces including USB, Ethernet, and SATA.
2. Solution Block Diagram:
3. Functional Description:
- Supports H.265 decoding for up to 12 channels at 1920x1080p 30fps, or 8 channels at 2560x1440 30fps, or 8 channels at 2688x1520 25fps.
- Supports H.264 decoding for up to 12 channels at 1920x1080p 30fps, or 8 channels at 2560x1440 30fps, or 8 channels at 2688x1520 25fps.
- Integrated codec with one stereo 2-channel microphone input (single-ended or differential) and one mono Line-Out output.
- Embedded Flash Control interface compatible with external Nor Flash and NAND Flash, supporting dual 16-bit DDR3/DDR4 memory interfaces.
- Video outputs include HDMI 2.0, CVBS, and VGA.
- USB interfaces: one USB 3.0 Host port, one USB 2.0 Host port, and one USB 2.0 port configurable as Host or Device.
- Dual Ethernet ports: one integrated PHY and one supporting either RGMII1 or two RGMII2 interfaces.
- High-speed SATA hardware interface supported.
- Comprehensive peripheral support including UART, SDIO, SPI, PWM, and SAR ADC.
