參數(shù)資料
型號(hào): AM79C940
廠商: Advanced Micro Devices, Inc.
英文描述: Media Access Controller for Ethernet (MACE)
中文描述: 媒體訪問控制器(MACE發(fā)生以太網(wǎng))
文件頁數(shù): 56/122頁
文件大?。?/td> 914K
代理商: AM79C940
AMD
56
Am79C940
data without addition of an FCS field, and the FCS will be
calculated and verified at the receiver.
The loopback facilities of the MACE device allow full op-
eration to be verified without disturbance to the network.
Loopback operation is also affected by the state of the
Loopback Control bits (LOOP [0–1]) in the User Test
Register. This affects whether the internal MENDEC is
considered part of the internal or external loop-
back path.
When in the loopback mode(s), the multicast address
detection feature of the MACE device, programmed by
the contents of the Logical Address Filter (LADR [63–0])
can only be tested when RCVFCSE = 1, allocating the
CRC generator to the receiver. All other features
operate identically in loopback as in normal operation,
such as automatic transmit padding and receive
pad stripping.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AM79C940_00 制造商:AMD 制造商全稱:Advanced Micro Devices 功能描述:Media Access Controller for Ethernet (MACE⑩)
AM79C940-16/25 制造商:未知廠家 制造商全稱:未知廠家 功能描述:
AM79C940-16JC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller
AM79C940-25JC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Node Controller
AM79C940AVC 制造商:AMD 功能描述:79C940 AMD'94 SMT N6E2A