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| sp4740资料 | |
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sp4740 |
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file size : 116 kb
manufacturer: description:the sonic (systems-oriented network interface control- ler) is a second-generation ethernet controller designed to meet the demands of todays 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 for increased performance the sonic implements a 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 |
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| 1pcs | 100pcs | 1k | 10k | ||
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型 号：sp4740 厂 家： 封 装：0529 批 号：dip/sop 数 量：3000 说 明： |
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运 费： 所在地： 新旧程度： |
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| 联系人：林浩/林妮 |
| 电 话：0755-82532799/82532766/83989559 |
| 手 机：13510168121/13725556003 |
| qq：496982847/351622092 |
| msn：linearic@hotmail.com |
| 传 真：0755-82532766 |
| email：maxim_zi@126.com |
| 公司地址： 深圳市福田区佳和大厦b座1802室 门市部：华强广场 q2a114展销柜 |
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