MIPI RFFE Slave Controller IP Core

Overview

Mobile radio communication is trending towards complex multi-radio systems comprising of several transceivers. The MIPI RFFE bus is is 2-wire serial interface which utilizes a bus frequency of up to 26 MHz and timing accurate trigger mechanisms to allow control of timing critical functions. It is used to connect a digital RFIC to RF front end components, like Power Amplifiers, Low-Noise Amplifiers and Antenna Sensors, which are considered RFFE Slaves.

The RFFE Master IP core typically resides in the RFIC in a mobile platform, and utilizes the RFFE bus to identify, program and monitor the registers in RF front end Slave devices through programmed IO. It is designed to support existing standards such as LTE, UMTS, HSPA and EGPRS, and is usable in configurations ranging from single Master/single Slave to multi-Master/multi-Slave.

The RFFE Slave IP Core resides in each RF front end component. At a minimum, Arasan delivers RFFE Slave in RTL form. Optionally, physical designs of the complete RFFE Slave, including the Pad Logic block for CLK and DATA as shown below, can be provided upon request.

Key Features

  • Compliant with MIPI RFFE Specification 1.10
    • Delivered in Reuse Methodology Manual (RMM) compliant Verilog RTL format
    • Optionally delivered as a physical design
    • Small footprint
  • Configurable implementation with respect to number and type of registers
  • Up to 15 Devices can be connected per RFFE bus
  • Low pin count on RFFE interface (SCLK and SDATA)
  • Low EMI
  • Low power consumption
  • Timing accurate trigger mechanisms, including group triggering
  • Bitwise low power state support Support Register read register write , register 0 write and Extended Register write and Extended Register read.
  • RFFE clock speed of 26Mhz
  • Support for half speed read access for slow RF front end devices

Benefits

  • Fully compliant to MIPI standard
  • Small footprint
  • Code validated with Spyglass
  • Functionality ensured with comprehensive verification
  • Premier direct support from Arasan IP core designers

Deliverables

  • IP Deliverables for RTL Version
    • Verilog HDL of the IP Core
    • User guide
    • Gate count estimates available upon request
    • Synthesis scripts
    • Simulation environment including testbench, BFM’s, and exhaustive test suite
  • Additional Deliverables, for Physical Design (optional)
    • GDS-II Database
    • LVS Netlist
    • Physical Abstract Models (LEF)
    • Timing Models (LIB)

Technical Specifications

Maturity
Silicon Proven
Availability
Now
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Semiconductor IP