DP83934CVUL-20

Controllers Overview

The DP83934CVUL-20 is a SONIC-T Systems-Oriented Network Interface Controller with a Twisted Pair Interface. It integrates an IEEE 802.3 Encoder/Decoder and supports 10BASE-T Ethernet. The device features a 32-bit non-multiplexed address and data bus, high-speed interruptible DMA, and linked-list buffer management. It includes two independent 32-byte transmit and receive FIFOs, complete address filtering for up to 16 physical/multicast addresses, and a 32-bit general-purpose timer. Fabricated in low-power CMOS, it operates within a commercial temperature range of 0°C to 70°C.

Controllers Feature Summary

• Integrates IEEE 802.3 ENDEC and Twisted Pair Interface for a one-chip 10BASE-T solution
• Supports big and little endian byte ordering via selectable bus modes
• Implements linked-list buffer management for flexible packet processing without intermediate copying
• Provides full network management facilities supporting the 802.3 layer management standard

Controllers Applications

• PC-oriented Ethernet adapters
• High-speed motherboard designs
• Bridge and repeater applications

Controllers Procurement Notes

Verify the specific suffix CVUL-20 against the manufacturer's current product status documentation. Confirm that the component meets all required electrical specifications and environmental ratings for the intended deployment environment before finalizing procurement decisions.

Controllers Selection Notes

Select this controller for systems requiring integrated twisted pair interface capabilities alongside high-performance DMA operations. Ensure the host system supports the required 32-bit bus architecture and compatible byte ordering modes. Verify compatibility with existing memory buffer management schemes utilizing linked-list descriptors.

Controllers Part Context

The DP83934 belongs to the SONIC-T family of network interface controllers developed by National Semiconductor, now part of Texas Instruments. This second-generation controller was designed to meet the demands of high-speed 32-bit and 16-bit systems, offering enhanced performance through efficient buffer management and integrated media access control functions.

Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided source material.