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參數(shù)資料
| 型號： | LAN91C96I |
| 廠商： | SMSC Corporation |
| 英文描述： | NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER |
| 中文描述： | 非PCI單芯片以太網(wǎng)控制器全DUPLES |
| 文件頁數(shù)： | 63/110頁 |
| 文件大?。?/td> | 655K |
| 代理商： | LAN91C96I |
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Non-PCI Single-Chip Full Duplex Ethernet Controller
SMSC DS – LAN91C96I
Page 63
Rev.
11/18/2004
DATASHEET
8.3
Typical Flow Of Events For Receive
S/W DRIVER
CSMA/CD SIDE
1
ENABLE RECEPTION - By setting the RXEN
bit.
2
A packet is received with matching address.
Memory is requested from MMU. A packet
number is assigned to it. Additional memory is
requested if more pages are needed.
The internal DMA logic generates sequential
addresses and writes the receive words into
memory. The MMU does the sequential to
physical address translation. If overrun, packet
is dropped and memory is released.
When the end of packet is detected, the status
word is placed at the beginning of the receive
packet in memory. Byte count is placed at the
second word. If the CRC checks correctly the
packet number is written into the RX FIFO. The
RX FIFO being not empty causes RCV INT
(interrupt) to be set. If CRC is incorrect the
packet memory is released and no interrupt will
occur.
3
4
5
SERVICE INTERRUPT - Read the Interrupt
Status Register and determine if RCV INT is
set. The next receive packet is at receive area.
(Its packet number can be read from the FIFO
Ports Register). The software driver can
process the packet by accessing the RX area,
and can move it out to system memory if
desired. When processing is complete the
CPU issues the REMOVE AND RELEASE
FROM TOP OF RX command to have the MMU
free up the used memory and packet number.
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| LAN91C96I-MS | NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER |
| LAN91C96I-MU | NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER |
| LAN91C96IQFP | NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER |
| LAN91C96ITQFP | NON-PCI SINGLE-CHIP FULL DUPLES ETHERNET CONTROLLER |
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LAN91C96I_07 | 制造商:SMSC 制造商全稱:SMSC 功能描述:Non-PCI Single-Chip Full Duplex Ethernet Controller |
| LAN91C96IMS | 制造商:Microchip Technology Inc 功能描述: |
| LAN91C96I-MS | 功能描述:以太網(wǎng) IC Non-PCI 10 Mbps Ethernet MAC RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN91C96I-MU | 功能描述:以太網(wǎng) IC Non-PCI 10 Mbps Ethernet MAC RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
| LAN91C96IQFP | 功能描述:以太網(wǎng) IC Non-PCI 10 Mbps Ethernet MAC RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray |
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