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DMAC

更新时间: 2024-11-06 03:30:03
品牌 Logo 应用领域
DCD 控制器
页数 文件大小 规格书
4页 124K
描述
Media Access Controller

DMAC 数据手册

 浏览型号DMAC的Datasheet PDF文件第2页浏览型号DMAC的Datasheet PDF文件第3页浏览型号DMAC的Datasheet PDF文件第4页 
DMAC  
Media Access Controller  
ver 2.07  
Supports full and half duplex operation at  
O V E R V I E W  
10 Mbps or 100 Mbps  
The DMAC is hardware implementation of  
media access control protocol defined by the  
IEEE standard. DMAC in cooperation with  
external PHY device enables network func-  
tionality in design. It is capable of transmitting  
and receiving Ethernet frames to and from  
the network. Half and full duplex modes are  
supported, as well 10 and 100 Mbit/s speed.  
The core is able to work with wide range of  
processors: 8, 16 and 32 bit data bus, with  
little or big endian byte order format. Design  
is technology independent and thus can be  
implemented in variety of process technolo-  
gies. This core strictly conforms to IEEE  
802.3 standard.  
CRC-32 algorithm calculates the FCS  
nibble at a time, automatic FCS genera-  
tion and checking, able to capture frames  
with CRC errors if required  
Lite design, small gate count and fast  
operation  
Programmable or fixed MAC address  
Promiscuous mode support  
Dynamic PHY configuration by MII man-  
agement interface  
Receive FIFO able to store many mes-  
sages at a time  
Allows operation from a wide range of  
input bus clock frequencies  
K E Y F E A T U R E S  
Conforms to IEEE 802.3-2002 specifica-  
Fully synthesizable  
Static synchronous design with positive  
tion  
edge clocking and synchronous reset  
8/16/32-bit CPU slave interface with little  
No internal tri-states  
Scan test ready  
or big endianess  
Simple interface allows easy connection  
to CPU  
A P P L I C A T I O N S  
Embedded microprocessor boards  
Narrow address bus with indirect I/O in-  
terface to the transmit and receive data  
dual port memories  
Networking devices (Network Interface  
Cards, routers, switches)  
Supports 10BASE-T and 100BASE-  
TX/FX IEEE 802.3 compliant MII PHYs  
Communications systems  
Media Independent Interface (MII) for  
connection to external 10/100 Mbps PHY  
transceivers  
All trademarks mentioned in this document  
are trademarks of their respective owners.  
http://www.DigitalCoreDesign.com  
http://www.dcd.pl  
Copyright 1999-2007 DCD – Digital Core Design. All Rights Reserved.  

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