Vendor: ZeroPoint Technologies AB Category: CXL

Hardware compressed memory IP for CXL devices and chip-to-chip links

Hardware compressed memory IP for CXL devices, with inline compression plus complete memory management

Overview

Hardware compressed memory IP for CXL devices and chip-to-chip links. Ultra-fast inline compression and decompression with complete, real-time compressed memory management.

What it does

ZeroConnect expands the memory capacity of CXL devices using hardware-accelerated inline compression, and it manages that compressed memory in real time. It is transparent to the host: it operates on the data requests and responses the host issues over CXL.mem, with explicit control available over CXL.io off the critical path.

A complete IP stack, not just a compressor

Shipping compressed memory takes far more than a compression engine. ZeroConnect delivers the full subsystem:

  • Compression and decompression, with two algorithm families by default.
  • Hardware address remapping from device to media address space.
  • On-chip block cache in SRAM for write aggregation and read caching, with ECC.
  • Compressed memory manager for allocation, de-allocation, and defragmentation.
  • Capacity backpressure with configurable watermarks and host interrupts.
  • Real-time telemetry for capacity and compression statistics.

Algorithms

Two families by default: LZ4 (open standard, fully block-format compliant) and ZeroDelta, the ZeroPoint proprietary algorithm tuned for very low, deterministic latency on the inline CXL path. Compaction is aligned to the 4KB page requirement.

Key specifications

Detailed area, SRAM, and cycle-level latency figures are configuration dependent.

CXL device target CXL Type 3 devices: SLD and (MH-)MLD.
Host exposure Transparent over CXL.mem. Explicit control via CXL.io (non-critical path).
Algorithms LZ4 (open standard) and ZeroDelta (proprietary), at 32B / 64B granularity, grouped into 1KB or 4KB superblocks.
IP clock Default 1.2 GHz. LZ4 up to 1.6 GHz; ZeroDelta up to 2 GHz.
Compression ratio 2–3x on general server workloads. By benchmark: TPC-H database 2x; db-shootout 2.5x; HPCG 2.3x; Spark/Scala-means 2.9x.
Read latency Meets the OCP CXL budget of under 250 ns average read latency. Typically 70 ns including DRAM latency.
Block cache hit ratio Greater than 90% across benchmarks.
Metadata overhead Approximately 0.78% of DRAM media for address translation.
Cache / remapper area Configurable. Typically 16 MB block cache / 128 KB remapper.
Data interface AXI5, 256-bit / 512-bit. Configuration interface: AXI4, 64-bit.
CXL compliance CXL 2.0 and CXL 3.1 TE, MH-MLD, RAS. Compatible with CXL 3.1 TSP security (range-based encryption).
RAS SECDED ECC on all SRAMs, data poisoning, FW interrupts, and event logging.

Key features

  • CXL Type 3 devices (SLD, MH-MLD)
  • Transparent to host over CXL.mem
  • LZ4 + ZeroDelta algorithms
  • Complete compressed memory management
  • RAS support with ECC and poison handling

What’s Included?

  • Soft IP for CXL device ASICs: RTL and test framework.
  • Firmware running on the CXL device.
  • Host-based software driver to expose the OCP interface.
  • Integration support.

Specifications

Identity

Part Number
ZeroConnect
Vendor
ZeroPoint Technologies AB

Files

Product Sheet Download

Note: some files may require an NDA depending on provider policy.

Provider

Frequently asked questions about CXL IP cores

What is Hardware compressed memory IP for CXL devices and chip-to-chip links?

Hardware compressed memory IP for CXL devices and chip-to-chip links is a CXL IP core from ZeroPoint Technologies AB listed on Semi IP Hub.

How should engineers evaluate this CXL?

Engineers should review the overview, key features, supported foundries and nodes, maturity, deliverables, and provider information before shortlisting this CXL IP.

Can this semiconductor IP be compared with similar products?

Yes. Buyers can compare this product with similar semiconductor IP cores or IP families based on category, provider, process options, and structured technical specifications.

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