Structured Manufacturing Data (2026)

Count Register

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Count Register used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Count Register is characterized by the integration of Register Storage Cells and Decrement Logic. In industrial production environments, manufacturers listed on CNFX commonly emphasize Semiconductor (Silicon) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A hardware register within a DMA engine that tracks the number of data units to be transferred.

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Product Specifications

Technical details and manufacturing context for Count Register

Definition
The Count Register is a critical component of a Direct Memory Access (DMA) engine's control logic. It stores the total number of data units (e.g., bytes, words) to be transferred in a single DMA operation. The register is typically loaded by the CPU or system software to initiate a transfer. During the DMA cycle, the value is decremented as each unit is moved, and the transfer completes when the count reaches zero, often generating an interrupt to signal completion.
Working Principle
The Count Register operates as a down-counter. Upon DMA transfer initiation, it is loaded with the total transfer count. With each successful transfer of a data unit (as dictated by the data width and addressing mode), the register's value is decremented by the appropriate amount (e.g., 1 for byte transfers, 2 for 16-bit word transfers). The DMA controller monitors this value; when it reaches zero, the transfer is considered complete, and the DMA engine typically halts and signals the processor.
Common Materials
Semiconductor (Silicon)
Technical Parameters
  • The bit width of the Count Register determines the maximum transfer count it can hold (e.g., a 16-bit register can hold values up to 65,535). (bits) Standard Spec
Components / BOM
  • Register Storage Cells Part
    Stores the binary count value using flip-flops or latches.
    Material: Semiconductor (Silicon)
  • Decrement Logic Part
    Circuitry that reduces the stored count value based on transfer events.
    Material: Semiconductor (Silicon)
  • Zero-Detect Circuit Part
    Comparator logic that detects when the count value reaches zero to signal transfer completion.
    Material: Semiconductor (Silicon)

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Count Register.

DMA engine count register hardware data transfer unit tracking register semiconductor silicon DMA register computer manufacturing hardware register electronic optical product DMA component

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Direct Memory Access (DMA) Engine
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Not applicable (electronic component)
other spec: Data unit size: 8-bit to 64-bit, Clock frequency: Up to 500 MHz, Power supply: 1.2V to 3.3V ±5%
temperature: 0°C to 70°C (operational), -40°C to 85°C (storage)
Media Compatibility
✓ Digital data streams in embedded systems ✓ Memory-to-peripheral DMA transfers ✓ High-speed serial communication protocols
Unsuitable: High-voltage or high-current switching environments without proper isolation
Sizing Data Required
  • Maximum data transfer rate (bytes/sec)
  • Data unit width (bits per transfer)
  • Total transfer count capacity (max units)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Wear and Tear of Sealing Surfaces
Cause: Abrasive particles in the fluid causing erosion of sealing faces, leading to leakage and reduced pressure control.
Corrosion and Pitting
Cause: Chemical attack from process fluids or environmental exposure, compromising structural integrity and sealing capability.
Maintenance Indicators
  • Visible leakage around the register body or connections indicating seal failure
  • Unusual noise (hissing or whistling) during operation suggesting improper seating or internal damage
Engineering Tips
  • Implement regular fluid filtration and purity monitoring to prevent abrasive particle ingress
  • Apply protective coatings and conduct periodic corrosion inspections with non-destructive testing methods

Compliance & Manufacturing Standards

Reference Standards
ISO 9001:2015 Quality Management Systems ANSI/ASME B89.1.6 Measurement of Plain Internal Diameters DIN 862 Threads for Counters and Measuring Instruments
Manufacturing Precision
  • Bore diameter: +/-0.01mm
  • Flatness of register face: 0.05mm
Quality Inspection
  • Dimensional verification using coordinate measuring machine (CMM)
  • Surface finish inspection per ISO 1302

Factories Producing Count Register

Manufacturer profiles with relevant production capability in China

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

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What is the primary function of a Count Register in DMA engines?

The Count Register tracks the number of data units to be transferred during DMA operations, decrementing as transfers complete until reaching zero.

What materials are used in manufacturing Count Registers?

Count Registers are primarily manufactured using semiconductor silicon, which enables precise electronic functionality in computer and optical products.

How does the Count Register integrate with DMA engine components?

It works with register storage cells to hold the count value, decrement logic to reduce the count during transfers, and zero-detect circuits to signal transfer completion.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
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