Description
HBM2 is full-featured, easy-to-use, synthesizable design, compatible with HBM2 JESD235 and JESD235A specification and DFI-version 4.0 or 5.0 specification Compliant. Through its HBM2 compatibility, it provides a simple interface to a wide range of lowcost devices. HBM2 IP is proven in FPGA environment. The host interface of the HBM2 can be simple interface or can be AMBA AHB, AMBA AHB-Lite, AMBA APB, AMBA AXI, AMBA AXI-Lite, Tilelink, OCP, VCI, Avalon, PLB, Wishbone or Custom protocol.
Features
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Supports HBM2 protocol standard JESD235 and JESD235A Specification
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Compliant with DFI version 4.0 or 5.0 Specification.
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Supports up to 16 AXI ports with data width upto 512 bits.
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Supports controllable outstanding transactions for AXI write and read channels
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Supports in port arbitration and multi-port arbitration.
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Supports user programmable page policy. • Closed page policy • Open page policy
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Supports Error Checking and correction (ECC).
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Supports retry on ECC error, with retry limit user controllable.
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Supports high clock speeds in ASIC and FPGA.
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Supports low latency for write and read path.
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Supports reordering of transactions for higher performance.
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Supports all the HBM2 commands as per the specs.
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Supports burst length of 2 and 4.
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Supports all Interface Groups.
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Supports programmable Read/Write latency timings.
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Supports bank grouping.
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Supports DRAM Clock disabling feature.
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Supports Low power control features.
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Supports Data bit enable/disable feature.
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Supports 8, 16, 32 and 64 banks per channel.
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Supports 1:2 MC to PHY frequency ratio.
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Supports up to 8 channels per stack.
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Supports Extended Addressing.
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Supports Extended Write latency and read latency.
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Supports all mode registers programming.
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Supports Data Bus Inversion (DBI) for write and read.
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Supports legacy mode and pseudo channel mode operation (64 DQ width for pseudo channel mode).
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Supports self-refresh modes.
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Supports channel density of 1GB to 128 GB..
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Supports ECC.
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Supports Error signaling.
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Supports DFI Read/Write Chip Select.
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Supports write data mask and data strobe features..
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Supports for input clock stop and frequency change.
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Supports for target row refresh mode.
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Supports for temperature compensated refresh reporting.
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Supports for IEEE standard 1500.
Deliverables
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The HBM2 interface is available in Source and netlist products.
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The Source product is delivered in plain text Verilog. If needed VHDL, SystemC code can also be provided.
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Easy to use Verilog Test Environment with Verilog Testcases
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Lint, CDC, Synthesis, Simulation Scripts with waiver files
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IP-XACT RDL generated address map
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Firmware code and Linux driver package
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Documentation contains User's Guide and Release notes.