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Texas Instruments FPC202 Dual Port Controllers

Texas Instruments FPC202 Dual Port Controller with Expanded I/Os is a low-speed signal aggregator for common port types such as SFP, QSFP, and Mini-SAS HD. The FPC202 collects all low-speed control and I2C signals across two ports and provides a single easy-to-use management interface to the host (I2C or SPI). Several FPC202 controllers can be used in high-port-count applications with one common control interface to the host. The FPC202 is designed to allow placement on the bottom side of the PCB to simplify routing.

The FPC202 offers a total of four LED drivers, 12 general-purpose I/Os, and two downstream I2C buses for each port. The expanded set of I/Os allows for control of additional components and features within a system. The general-purpose outputs can be used to drive additional LEDs if more than four are required per port. The LED drivers have beneficial features such as programmable blinking and dimming. The device can pre-fetch data from user-specified registers in each module. This makes the data readily accessible to the host through a fast I2C (up to 1MHz) or SPI (up to 10MHz) interface. The need to continuously poll the modules is eliminated by the device triggering in an interrupt to the host whenever critical, user-configurable events occur associated with any of the ports under its control.

Features

  • Supports control signal management and I2C aggregation across two ports
  • Four LED drivers and 12 general-purpose I/Os per port
  • General-purpose outputs can be used to drive >4 LEDs per port
  • Customizable interrupt events
  • Combine multiple FPC202s to control 28 total ports through a single host interface
  • Eliminates need for discrete I2C multiplexers, LED drivers, and high-pin-count FPGA/CPLD control devices
  • Reduces PCB routing complexity by handling all low-speed control signals close to the port
  • Selectable I2C (Up to 1MHz) or SPI (Up to 10MHz) host control interface
  • Automatic pre-fetching of critical, user-specified data from the modules
  • Broadcast mode allows writes to all ports simultaneously across all FPC202 controllers
  • Advanced LED features for port status indication, including programmable blinking and dimming
  • 1.8V to 3.3V Separate host-side I/O voltage
  • Small QFN package enabling placement on the bottom side of PCB underneath ports

Applications

  • ToR/Aggregation/core switch and router
  • Wireless infrastructure base band unit and remote radio unit
  • Network Interface Card (NIC) and Host Bus Adapter (HBA)
  • Storage cards and storage racks
  • SFP, QSFP, QSFP-DD, OSFP, Mini-SAS HD port management

Simplified Block Diagram

Block Diagram - Texas Instruments FPC202 Dual Port Controllers
Paskelbta: 2018-11-15 | Atnaujinta: 2023-07-19