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參數(shù)資料
| 型號： | 91C94 |
| 廠商： | SMSC Corporation |
| 英文描述： | ISA/PCMCIA SINGLE CHIP ETHERNET CONTROLLER WITH RAM |
| 中文描述： | 的ISA / PCMCIA的單芯片以太網(wǎng)控制器與RAM |
| 文件頁數(shù)： | 111/120頁 |
| 文件大?。?/td> | 447K |
| 代理商： | 91C94 |
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90
For example, if an odd pointer value is loaded,
first a byte is pre-fetched into the FIFO, and
immediately
a
full
word
is
pre-fetched
completing three bytes into the FIFO. If the CPU
reads a word, one byte will be left again a new
word is pre-fetched.
In the case of write, if an odd pointer value is
loaded, and a full word is written, the FIFO
holds two bytes, the first of which is immediately
written into an odd memory location. If by that
time another byte or word
was written, there will be two or three bytes in
the FIFO and a full word can be written into the
now even memory address.
When a CSMA/CD cycle begins, the arbiter will
route the CSMA/CD DMA addresses to the MMU
as well as the packet number associated with
the operation in progress. In full-duplex mode,
receive and transmit requests are alternated in
such a way that the CPU arbitration cycle time
is not affected.
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相關(guān)代理商/技術(shù)參數(shù) |
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| 91CCC3 | 制造商:Wirepro 功能描述:Connector Accessories Cap and Chain For Receptacle |
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| 91CR100 | 功能描述:微調(diào)電阻 - 通孔 3/8inch 100 Thumbwheel RoHS:否 制造商:Vishay/Sfernice 產(chǎn)品:Trimmer Resistors - Multi Turn 產(chǎn)品類型:Multiturn 轉(zhuǎn)數(shù):14 錐度:Linear 電阻:10 kOhms 電壓額定值:250 V 端接類型:Pin 功率額定值:250 mW (1/4 W) 容差:10 % 溫度系數(shù):100 PPM / C |
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