Inter-Core Communication Bus: Bandwidth Up to 512 GB/s

Q: What is the primary function of an Inter-Core Communication Bus?

The primary function is to enable efficient data sharing and synchronization between multiple processing cores within a single processor package, allowing parallel processing tasks to coordinate effectively.

Q: How does bus arbitration work in multi-core systems?

Bus arbitration uses priority-based or round-robin algorithms to manage simultaneous access requests from multiple cores, ensuring fair access while minimizing latency through dedicated arbitration logic circuits.

Q: What are the key performance metrics for evaluating bus efficiency?

Key metrics include bandwidth (data transfer rate), latency (time delay), power efficiency (watts per gigabyte), error rate, and scalability (ability to support additional cores).

Component Specifications

Definition

The Inter-Core Communication Bus is a specialized electronic component within multi-core processors that facilitates high-speed, low-latency data exchange between individual processing cores. It employs advanced signaling protocols and arbitration mechanisms to manage simultaneous data transfers while maintaining data integrity and synchronization across the processor architecture.

Working Principle

Operates on packet-switched or circuit-switched protocols using dedicated physical pathways (traces) between cores. Implements arbitration logic to manage access conflicts, error correction codes for data integrity, and clock synchronization mechanisms to ensure coherent data exchange across asynchronous core operations.

Materials

Copper alloy traces (typically 99.9% pure copper with alloying elements for thermal stability), silicon dioxide insulation layers, gold-plated contact points for corrosion resistance, FR-4 or polyimide substrate material

Technical Parameters

Parameter	Typical range	Notes & selection driver
Latency	< 5 ns
Voltage	0.8-1.2V
Bandwidth	Up to 512 GB/s
Protocol Support	AXI, CHI, OCP, proprietary protocols
Signal Integrity	BER < 10^-15
Power Consumption	3-15W depending on traffic
Operating Temperature	-40°C to 125°C

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

ISO/IEC 11801, IEEE 802.3, JEDEC JESD204C, PCI-SIG PCIe 5.0

Parent Products

This component is used in the following industrial products

Multi-Core Analysis Processor

A specialized processing unit within a network protocol analyzer that utilizes multiple processor cores to simultaneously analyze different network protocols and data streams.

View Product Details

Engineering Analysis

Risks & Mitigation

Signal integrity degradation at high frequencies
Thermal management challenges
Electromagnetic interference
Clock synchronization failures
Arbitration deadlocks

FMEA Triads

Trigger: Electromigration in copper traces
Failure: Increased resistance leading to signal degradation
Mitigation: Implement redundant pathways, use copper alloys with better electromigration resistance, apply conservative current density limits

Trigger: Clock skew between cores
Failure: Data synchronization errors and processing inconsistencies
Mitigation: Implement adaptive clock distribution networks, use phase-locked loops, add synchronization buffers

Trigger: Simultaneous access requests exceeding arbitration capacity
Failure: System deadlock or excessive latency
Mitigation: Implement hierarchical arbitration, add request queuing, optimize priority algorithms

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Signal timing tolerance ±5ps, impedance tolerance ±10%, voltage tolerance ±3%

Test Method

BERT (Bit Error Rate Test) for signal integrity, TDR (Time Domain Reflectometry) for impedance matching, thermal cycling tests (-40°C to 125°C for 1000 cycles), EMI/EMC compliance testing per IEC 61000 standards

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

Check the legal entity, factory address, ownership, certifications, and direct contacts.

CNFX does not score or rank suppliers. Buyers must verify all claims and documents with the legal manufacturer before ordering.

Manufacturers of Inter-Core Communication Bus

Manufacturer profiles associated with Inter-Core Communication Bus.

Sourcing Inter-Core Communication Bus from China?

Tell us your specification and target quantity — we will match it against manufacturer records and come back with the factories that fit.

Request manufacturers We manufacture this

Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Related Components

Marking Ink

Specialized ink for permanent identification on surface mount resistors during manufacturing.

Dielectric Layer

Insulating layer in surface mount capacitors that stores electrical energy through polarization.

Optical Window

Transparent optical component for light transmission in polycarbonate lens housings

PCB Substrate

PCB substrate is the foundational insulating layer that provides mechanical support and electrical connectivity for electronic components in high-speed memory modules.

Frequently Asked Questions

What is the primary function of an Inter-Core Communication Bus?