Ethernet / Networking

1G BASE-T

An independent Ethernet MAC-frame BFM and Clause-22 MDIO PHY-model BFM…

shippingGroup Ethernet / NetworkingStandard IEEE 802.3ab (1000BASE-T) — MAC-frame + MDIO layer only

Available now — real, tested verification collateral, not a roadmap placeholder.

Verification IP is not safety-rated. These are testbench components — no ASIL target, no FMEDA, no IP-XACT, no safety-mechanism interface. They exist to help you verify a design, not to carry a safety argument. The safety soft-IP catalog is over here.

The deliverable

What you get

Bus-functional model

An independent driver for the protocol, written clean-room from the public specification — not derived from our own RTL, so it is a genuine second source.

Passive protocol checker

A monitor that watches the bus and asserts the spec’s rules continuously, so a violation fails the run where it happens rather than downstream.

Self-checking interop testbench

A one-command testbench that drives the model against real RTL and hard-checks the result — reproduce every claim on day one.

An independent Ethernet MAC-frame BFM and Clause-22 MDIO PHY-model BFM, written clean-room from the public IEEE 802.3 frame format and Clause 22 register-access spec — not derived from our own gmac RTL — exercised against the catalog’s real Gigabit-class GMAC. Covers the MAC-frame layer this PHY sits below: preamble/SFD/FCS-framed TX and RX byte streams plus MDIO register read/write round-tripped through an independent PHY register model, all independently CRC-32-checked by a passive frame checker. This entry and vip-eth-2g5 share the identical MAC-frame+MDIO deliverable, since the MAC-frame protocol is PHY-speed-independent; the 1000BASE-T-specific PHY layer (4D-PAM5 line coding, clause-28 auto-negotiation, master/slave clock-role resolution) sits below the byte-stream interface this VIP exercises and is not yet built. The AXI4-Lite TX/RX-DMA descriptor path is likewise out of scope for this first pass.

Key Features

Independent Ethernet frame BFM (SEND_FRAME/CAPTURE_FRAME) with its own CRC-32 (Ethernet FCS) recompute, verified against the real gmac TX/RX byte-stream path
Independent Clause-22 MDIO PHY-model BFM: register read+write round-tripped through gmac‘s own MDIO controller and confirmed byte-exact
Passive frame checker independently re-derives preamble/SFD framing + FCS legality on the transmitted stream; hard-checked against an injected bad-FCS frame
Roadmap, not yet covered: 1000BASE-T PHY layer (4D-PAM5, clause-28 auto-negotiation) and the AXI4-Lite TX/RX-DMA descriptor path

Standards & Compliance

IEEE 802.3ab (1000BASE-T) — MAC-frame + MDIO layer only

Pairs With

Built to lean against these catalog IPs during integration:

gmac

Interested in the 1G BASE-T VIP?

Deliverables, the file manifest, and licensing terms are shared under a mutual NDA.

Talk to us →See related VIP

Verification IP is testbench collateral and is deliberately not safety-rated: no ASIL target, no FMEDA, and no IP-XACT descriptor. It carries no functional-safety claim.

circuit-design.space · +1-971-357-1400 · sales@circuit-design.space