from Altera Corporation
     |
Features
- Conforms to theUTOPIA Level 2, Version 1.0specification
- 8-bit or 16-bit UTOPIA bus operation
- Single-PHY (SPHY) operation, with both octet-level and cell-level handshaking
- Multi-PHY (MPHY) operation, with singleclavsignal
- Logical-to-physical address translation via programmable look-up table (LUT)
- Parity generation and detection
- Atlantic™ interface—packet-based interface that is compatible with other Altera® cell and packet MegaCore® functions
- Intellectual property (IP) functional simulation models for use in Altera-supported VHDL and Verilog HDL simulators
- Easy-to-use IP Toolbench interface
- Support for OpenCore Plus evaluation
General Description
The UTOPIA Level 2 Master MegaCore function is designed for use in Asynchronous Transfer Mode (ATM)-layer devices that transfer data to and from PHY devices using the standard UTOPIA bus. The UTOPIA Level 2 Master MegaCore function comprises a separate transmitter and receiver; both support SPHY and MPHY operation modes. SPHY mode supports octet-level or cell-level handshake; MPHY mode supports cell-level handshake with up to 31 PHY devices. The transmitter polls the PHYs in a round-robin fashion to determine which are ready to receive data transfers and outputs the poll status to the ATM layer. The transmitter accepts cells from the ATM layer and sends them to the PHY devices via the UTOPIA bus interface. There is an option to generate parity information for the UTOPIA bus. The receiver polls the PHYs in a round-robin fashion to determine which are ready to send data transfers and outputs the poll status to the ATM layer. The receiver accepts cells from the PHY devices via the UTOPIA bus interface and sends them to the ATM layer. There is an option to check for parity errors on the UTOPIA bus.
Figure 1 shows the UTOPIA MegaCore function block diagram.
Figure 1. UTOPIA Block Diagram
OpenCore Plus Evaluation
Use the Altera OpenCore Plus evaluation flow to test drive this IP core.
Performance
Typical expected performance and utilization figures for this MegaCore function are provided in the UTOPIA Level 2 Master MegaCore Function User Guide (PDF).
Technical Support
For technical support on this MegaCore function, please visit the Altera mySupport online issue tracking system.
