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參數(shù)資料
| 型號(hào)： | 22368 |
| 英文描述： | Home Networking Board Design Using PCnet-Home Devices? - (PDF) |
| 中文描述： | 家庭網(wǎng)絡(luò)電路板設(shè)計(jì)使用PCnet家用裝置？ - （PDF格式） |
| 文件頁數(shù)： | 2/14頁 |
| 文件大小： | 275K |
| 代理商： | 22368 |
Publication#
22368
Issue Date:
November 1999
Rev:
B
Amendment/
0
Home Networking Board Design
Using PCnet-Home Devices
Application Note
This application note is intended to assist customers in using AMD’s Am79C978/Am79C978A
PCnet-Home devices. Details concerning application information, circuit design, EMI, printed
circuit layout techniques, and component selection are provided to help ensure first-pass success
in implementing a functional design that has optimized signal quality. This document should be
used in conjunction with the product data sheet for functional descriptions and features of the de-
vices, as well as the OrCAD schematics provided in the Evaluation Kit and on AMD’s web page.
Contact your local AMD Field Applications Engineer or Sales Office to ask any questions and dis-
cuss any concerns you may have.
INTRODUCTION
The Am79C978/Am79C978A devices are highly inte-
grated PCI Home Networking devices implementing a
Fast-Ethernet 10/100 Mbps 802.3 Media Access Con-
troller, 10BASE-T Physical Transceiver, and 1 Mbps
HomePNA technology. Figure 1 shows the block dia-
gram of the PCnet-Home device.
Figure 1.
PCnet-Home Block Diagram
HR_PHY
10BASE-T
EEPROM
Interface
&
LED
Block
10/100 Media Access
Controller
802.3 MAC
PCI Interface
PLL
HR+
HR-
TX+
TX-
RX+
RX-
PCI Bus
MII (10/100 PHY)
M
20 MHz Crystal
Clock Source
22368A-1
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