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OS85652

Status: In Production

Features:

  • Supports all MOST® data types
  • Eases inter-chip communication and streaming
  • Differential MediaLB 6-pin interface (up to 8192×Fs)
  • Single-ended MediaLB 3-pin interface (up to 1024×Fs)
  • Supports all MOST data types
  • 16-bit parallel slave port (up to 355 Mbps)
  • SRAM-like interface
  • Supports streaming legacy audio formats
  • Supports 7.1 audio (input/output)
  • Supports MPEG2 TS, 188-byte packets
  • Serial interfaces operation (up to 50 Mbps)
  • Parallel interface available (up to 216 Mbps)
  • Supports asynchronous packet exchange
  • Supports Quality of Service (QoS) packet exchange
  • Control Port supports I2C format for control messages and asynchronous packets
  • Operating voltages 3.3/1.8 V
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Device Overview

Summary

Description

The OS85650 and OS85652 are Input/Output Companion ICs that provide MediaLB® port expansion. They allow a wide variety of I/O types to be conveniently interfaced to a MOST® network. All MOST data types are supported (control, asynchronous, synchronous and isochronous). A powerful routing engine allows simultaneous routing of data between the MediaLB (3-Pin and/or 6-Pin) and the various I/O ports available on the chip including:

  • HBI (16-bit parallel port)
  • Serial Audio I/O (I2S and sequential (TDM) modes)
  • Serial and parallel TSIs
  • SPI
  • I²C

The high-performance routing engine operates at an internal speed of up to 1.5 Gbits/sec. It is able to simultaneously route a variety of data types between applications hardware located on the PCB or between those applications and the MOST network. For example, a combination of Ethernet data packets, MPEG transport stream packets, and multiple audio channels required for 7.1 surround sound applications can be routed between ports and encrypted/decrypted as necessary.

The I/O Companion can interface with any of SMSC's Intelligent Network Interface Controller (INIC) devices via the MediaLB 3-Pin interface. The additional MediaLB 6-Pin interface enables high-speed communication to the INIC150 which is required for higher bandwidth applications. Together with the 16-bit parallel HBI, it enables a high-speed connection between the INIC150 and multiple EHCs with over 300 Mbits/sec. It is also possible to use the OS8565x as a bridge between MediaLB 6-Pin and MediaLB 3-Pin.

Applications

The I/O Companion serves as a generic I/O port expander for various audio and video applications such as:

  • Head units
  • Rear Seat Entertainment (RSE)
  • Amplifiers
  • TV tuners
  • DVD drives
  • Blu-ray drives
  • Video displays

For product comparison, please consider: OS85650, OS85656

Additional Features
    • Media Local Bus (MediaLB®) Ports
      • Supports all MOST® data types
      • Eases inter-chip communication and streaming
      • Differential MediaLB 6-pin interface (up to 8192×Fs)
      • Single-ended MediaLB 3-pin interface (up to 1024×Fs)
    • Host Bus Interface (HBI)
      • Supports all MOST data types
      • 16-bit parallel slave port (up to 355 Mbps)
      • SRAM-like interface
    • Streaming Ports
      • Supports streaming legacy audio formats
      • Supports 7.1 audio (input/output)
    • Transport Stream Interface (TSI) Ports
      • Supports MPEG2 TS, 188-byte packets
      • Serial interfaces operation (up to 50 Mbps)
      • Parallel interface available (up to 216 Mbps)
    • Serial Peripheral Interface (SPI) Ports
      • Supports asynchronous packet exchange
      • Supports Quality of Service (QoS) packet exchange
    • Control Port supports I2C format for control messages and asynchronous packets
    • Operating voltages 3.3/1.8 V
Parametrics
Name
Value
MOST Speed Grade
25 Mbps, 50 Mbps, 150 Mbps
Interfaces
I2C, Streaming Port, MediaLB, HBI, SPI, TSI
Operating Voltage (V)
1.8 to 3.3
Temperature Range (°C)
-40 to 105
Packages
ETQFP128

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