DP83901AV datasheet(2/62 Pages) NSC

2 / 62 page

General Description (Continued)

The MAC function (NIC) provides simple and efficient pack-

et transmission and reception control by means of unique

dual DMA channels and an internal FIFO Bus arbitration

and memory control logic are integrated to reduce board

cost and area overheads

SNIC used in conjunction with the DP8392 Coaxial Trans-

ceiver Interface (CTI) provides a comprehensive 2 chip solu-

tion for IEEE 8023 networks and is designed for easy inter-

face to the latest 10BASE-T transceivers

Due to the inherent constraints of CMOS processing isola-

tion is required at the differential signal interfaces for

10BASE5 and 10BASE2 applications Capacitive or induc-

tive isolation may be used

Table Of Contents

10 SYSTEM DIAGRAM

20 PIN DESCRIPTION

30 BLOCK DIAGRAM

40 FUNCTIONAL DESCRIPTION

50 TRANSMITRECEIVE PACKET

ENCAPSULATIONDECAPSULATION

60 DIRECT MEMORY ACCESS CONTROL (DMA)

70 PACKET RECEPTION

80 PACKET TRANSMISSION

90 REMOTE DMA

100 INTERNAL REGISTERS

110 INITIALIZATION PROCEDURE

120 LOOPBACK DIAGNOSTICS

130 BUS ARBITRATION

140 PRELIMINARY ELECTRICAL CHARACTERISTICS

150 SWITCHING CHARACTERISTICS

160 AC TIMING TEST CONDITIONS

170 PHYSICAL DIMENSIONS

Connection Diagram

TLF10469 – 2

Top View

Order Number DP83901AV

See NS Package Number V68A

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