OS81216 Datasheet | Microchip Technology

Features - plete 50 Mbit/s synchronous network interface - Embedded network management functions - Network protection mode - Hardware & application watchdog timer - Intelligent muting - Diagnostics - Fallback Operation - IEEE MAC addressing and Ethernet channel - Media Local Bus (Media LB®) Port (OS81212) - Eases inter-chip munication and streaming - Media LB 3-pin interface at speeds up to 1024x Fs - I2C™ Control Port inter-chip message exchange - Streaming Port supports synchronous, fixed latency data exchange for a variety of serial audio formats including time-division multiplex (TDM) and pulse density modulation (PDM) - SPI Port supports asynchronous and control packets (OS81212/4) - General Purpose I/O (GPIO) Port - Remote control and configuration for operation without a local External Host Controller. - I2C (master) message tunneling - GPIO port control - Operating voltages 3.3 V/1.8 V - Available in 56-pin (OS81212) and 48-pin (OS81214/6) QFN packages with exposed pad - -40to +125 C junction temperature Conformity This document applies to hardware revision B2B FIGURE: OS81212/4/6 BLOCK DIAGRAM Applications - Automotive infotainment network nodes including instrument cluster, amplifier, headrest speakers, microphones, acoustic processing units, and rear seat entertainment. General Description The OS81212/4/6 is a highly integrated Intelligent Network Interface Controller (INIC) for 50 Mbit/s INICnetbased automotive networks with a transformer-less balanced media physical layer (b PHY) optimized for unshielded twisted pair (UTP) copper wire. The INIC provides encapsulation of all low-level functions necessary to develop a network-pliant device, significantly simplifying network implementation in a node. Integration of the INIC Software Stack into the INIC provides network-pliant real-time behavior. The INIC Software Stack significantly relieves the External Host Controller (EHC) from real-time processing tasks. Supervision of the application is also provided,...