National Semiconductor DP25 Manuals

ManualLib has 2 documents for the National Semiconductor DP25: 2 datasheets. Every file can be read online or downloaded as a PDF for free.

Datasheet 2

Key facts

Model
DP25
Industry
Industrial
Documents
2
Languages
EN
Last added
2012-06-12

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National Semiconductor DP83936AVUL-20/25/33 MHz Full Duplex SONIC TM -T Systems-Oriented Network Interface Controller with Twisted Pair Interface handbook

National Semiconductor DP83936AVUL-20/25/33 MHz Full Duplex SONIC TM -T Systems-Oriented Network Interface Controller with Twisted Pair Interface handbook

Datasheet 104 pages · 1.1 MB · EN

This document is a technical datasheet for the SONIC-T (Systems-Oriented Network Interface Controller with Twisted Pair) from National Semiconductor. It describes the features, functional description, pin connections, register details, and other technical information related to the DP83936AVUL-20/25/33 MHz Full Duplex SONIC-T Network Interface Controller.

The datasheet covers system diagrams, connection diagrams for National/Intel and Motorola modes, detailed pin descriptions, functional descriptions of modules like the Twisted Pair Interface and IEEE 802.3 Encoder/Decoder, buffer management schemes, register definitions, bus interface operations, network interfacing specifications, and AC/DC electrical characteristics.

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Questions answered in these manuals

What is the primary function of this controller?

It is a full duplex Ethernet controller designed for use with twisted pair interfaces.

From: National Semiconductor DP83936AVUL-20/25/33 MHz Full Duplex SONIC TM -T Systems-Oriented Network Interface Controller with Twisted Pair Interface handbook

How long does the transmit LED stay active?

The transmit LED is asserted for approximately 50 ms whenever data is transmitted.

From: National Semiconductor DP83936AVUL-20/25/33 MHz Full Duplex SONIC TM -T Systems-Oriented Network Interface Controller with Twisted Pair Interface handbook

What is the primary function of the SONIC-T controller?

It is a second-generation Ethernet Controller designed to meet the demands of today's high-speed 32- and 16-bit systems.

From: National Semiconductor DP83934CVUL-20/25 MHz SONIC TM -T Systems-Oriented Network Interface Controller with Twisted Pair Interface handbook

Does the device support external ENDEC units?

Yes, tying the EXT pin to V CC disables the internal ENDEC and allows an external ENDEC to be used.

From: National Semiconductor DP83934CVUL-20/25 MHz SONIC TM -T Systems-Oriented Network Interface Controller with Twisted Pair Interface handbook