參數(shù)資料
型號: CDK8920A
廠商: Cirrus Logic, Inc.
英文描述: CRYSTAL LAN ISA PLUG-AND-PLAY ETHERNET CONTROLLER
中文描述: 水晶藍(lán)的ISA即插即用,即插即用以太網(wǎng)控制器
文件頁數(shù): 8/144頁
文件大?。?/td> 1229K
代理商: CDK8920A
ceiver is disabled and power consumption drops
to the micro-Amp range.
In addition, the CS8920A has been designed for
very low noise emission, thus shortening the
time required for EMI testing and qualification.
Complete Support
The CS8920A comes with a suite of software
drivers for immediate use with most industry
standard network operating systems. In addition,
complete evaluation kits and manufacturing
packages are available, significantly reducing the
cost and time required to produce new Ethernet
products.
1.4
Enhancements Made in CS8920A
The functional enhancements made to the
CS8920A include the following:
The FDX_LED pin of the CS8920 has been red-
fined as the local-LAN-activity LED on the
CS8920A. The LOCALLED will light when
one of two events occurs:
the CS8920A transmits onto the network, or
the CS8920A receives a frame from the net-
work and that frame is addressed to this
station (i.e., the frame’s address passes the
CS8920A’s address filter).
The Plug and Play standard provides for an Aux-
illary Key which is normally used for testing
purposes or to program the EEPROM. The
CS8920A will respond to the Auxillary Key at
any time. The CS8920 responded to the Auxil-
lary Key only if Plug and Play was enabled, or if
the CS8920 had detected that the EEPROM con-
tained a bad CRC value. This meant that the
CS8920 would ignore the Auxillary Key in non-
Plug and Play mode as long as the CRC was
valid.
To support software compatibility with existing
device drivers, the CS8920A’s Product Identifi-
cation Code register has the same Product ID
Number as the CS8920. The CS8920A’s revi-
sion number has been incremented.
The CS8920A has added the EWAKE pin to the
boundary scan.
CS8920A
8
DS238PP1
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