Datasheet > DP83932CVF-25/NOPB

DP83932CVF-25/NOPB

更新时间： 2024-10-01 21:09:47

品牌	Logo	应用领域
德州仪器 - TI		局域网外围集成电路
页数	文件大小	规格书
98页	958K
描述
IC,LAN NODE CONTROLLER,CMOS,QFP,132PIN

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July 1995

DP83932C-20/25/33 MHz SONIC^TM

Systems-Oriented Network Interface Controller

General Description

The SONIC (Systems-Oriented Network Interface Control-

ler) is a second-generation Ethernet Controller designed to

meet the demands of today’s high-speed 32- and 16-bit sys-

tems. Its system interface operates with a high speed DMA

that typically consumes less than 3% of the bus bandwidth

(25 MHz bus clock). Selectable bus modes provide both big

and little endian byte ordering and a clean interface to stan-

dard microprocessors. The linked-list buffer management

system of SONIC offers maximum flexibility in a variety of

environments from PC-oriented adapters to high-speed

motherboard designs. Furthermore, the SONIC integrates a

fully-compatible IEEE 802.3 Encoder/Decoder (ENDEC) al-

lowing for a simple 2-chip solution for Ethernet when the

SONIC is paired with the DP8392 Coaxial Transceiver Inter-

face or a 10BASE-T transceiver.

management uses two areas in memory: one for indicating

status and control information and the other for fetching

packet data. The system can create a transmit queue allow-

ing multiple packets to be transmitted from a single transmit

command. The packet data can reside on any arbitrary byte

boundary and can exist in several non-contiguous locations.

Features

32-bit non-multiplexed address and data bus

High-speed, interruptible DMA

Linked-list buffer management maximizes flexibility

Two independent 32-byte transmit and receive FIFOs

Bus compatibility for all standard microprocessors

Supports big and little endian formats

Integrated IEEE 802.3 ENDEC

For increased performance, the SONIC implements

Complete address filtering for up to 16 physical and/or

multicast addresses

unique buffer management scheme to efficiently process,

receive and transmit packets in system memory. No inter-

mediate packet copy is necessary. The receive buffer man-

agement uses three areas in memory for (1) allocating addi-

tional resources, (2) indicating status information, and (3)

buffering packet data. During reception, the SONIC stores

packets in the buffer area, then indicates receive status and

control information in the descriptor area. The system allo-

cates more memory resources to the SONIC by adding de-

scriptors to the memory resource area. The transmit buffer

32-bit general-purpose timer

Full-duplex loopback diagnostics

Fabricated in low-power CMOS

132 PQFP package

Full network management facilities support the 802.3

layer management standard

Integrated support for bridge and repeater applications

System Diagram

TL/F/10492–2

TRI-STATEÉ is a registered trademark of National Semiconductor Corporation.

SONIC^TMis a trademark of National Semiconductor Corporation.

1995 National Semiconductor Corporation

TL/F/10492

RRD-B30M105/Printed in U. S. A.

12 3 4 5 6 7...98

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与DP83932CVF-25/NOPB相关器件

型号	品牌	获取价格	描述	数据表
DP83932CVF33	ETC	获取价格	LAN Node Controller
DP83932CVF-33	NSC	获取价格	MHz SONICTM Systems-Oriented Network Interface Controller
DP83932CVF-33	TI	获取价格	2 CHANNEL(S), 10Mbps, LOCAL AREA NETWORK CONTROLLER, PQFP132, PLASTIC, QFP-132
DP83932CVF-33/NOPB	TI	获取价格	IC,LAN NODE CONTROLLER,CMOS,QFP,132PIN
DP83934	TI	获取价格	DP83934CVUL-20/25 MHz SONIC(TM)-T Systems-Oriented Network Interface Controller with Twist
DP83934AVQB	ETC	获取价格	LAN Node Controller
DP83934CVUL20	ETC	获取价格	LAN Node Controller
DP83934CVUL-20	NSC	获取价格	MHz SONICTM-T Systems-Oriented Network Interface Controller with Twisted Pair Interface
DP83934CVUL-20	ROCHESTER	获取价格	3 CHANNEL(S), 10Mbps, LOCAL AREA NETWORK CONTROLLER, PQFP16, 28 X 28 MM, PLASTIC, QFP-160
DP83934CVUL25	ETC	获取价格	LAN Node Controller

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