參數(shù)資料
型號(hào)： 21440
廠商： Intel Corp.
英文描述： Multiport 10/100Mb/s Ethernet Controller(多端口10/100Mb/s 以太網(wǎng)控制器)
中文描述： 多端口10/100Mb/s以太網(wǎng)控制器（多端口支持10/100Mbps以太網(wǎng)控制器）
文件頁數(shù)： 12/92頁
文件大?。?/td> 1352K
代理商： 21440
Introduction
1-4
21440 Multiport 10/100Mb/s Ethernet Controller
1.9
Hardware Overview
Table 1-1
describes the 21440 components.
Table 1-1. 21440 Components Description
Component
Description
Transmit FIFO
Handles the transmitted packets while taking care of retransmission in
case of collision. The transmit FIFO has direct interface to the FIFO bus.
Receive FIFO
Handles the received packets and supports packet deletion in case of
errors. The receive FIFO has direct interface to the FIFO bus.
Transmit MAC
Implements the IEEE 802.3 transmit MAC functions while interfacing
between the transmit FIFO and the front-end ENDEC, providing full MII
interface.
Receive MAC
Implements the IEEE 802.3 receive MAC functions while interfacing
between the front-end ENDEC through MII interface and the receive FIFO.
PCS
ENDEC implementing the 100BASE-X PCS layer, including the
100BASE-TX scrambler/descrambler function.
SNMP and RMON
Handles network statistic counters for SNMP and RMON.
Control
Handles the chip registers accessible through the CPU bus.
Clock Logic
Generates the clocks required by the chip.
JTAG
Includes the JTAG boundary scan logic.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
2-1440000-2 制造商:TE Connectivity 功能描述:relay, OMR-C-105H,V000
2-1440000-3 功能描述:低信號(hào)繼電器 - PCB OMR-C-105H V300 RoHS:否 制造商:NEC 觸點(diǎn)形式:2 Form C (DPDT-BM) 觸點(diǎn)電流額定值: 線圈電壓:5 V 最大開關(guān)電流:1 A 線圈電流:1 A 線圈類型:Non-Latching 功耗:140 mW 端接類型:SMT 絕緣: 介入損耗:
2-1440000-5 功能描述:低信號(hào)繼電器 - PCB OMR-C-109H V530 RoHS:否 制造商:NEC 觸點(diǎn)形式:2 Form C (DPDT-BM) 觸點(diǎn)電流額定值: 線圈電壓:5 V 最大開關(guān)電流:1 A 線圈電流:1 A 線圈類型:Non-Latching 功耗:140 mW 端接類型:SMT 絕緣: 介入損耗:
2-1440000-6 制造商:TE Connectivity 功能描述:Electromechanical Relay SPST-NO 0.5A 12VDC 1.05KOhm Through Hole 制造商:TE Connectivity 功能描述:EM RLY SPST-NO 0.5A 12VDC 1.05KOHM TH - Bulk 制造商:TE Connectivity 功能描述:RELAY REED SPST 500MA 12V
2-1440001-1 功能描述:通用繼電器 OMI-SH-206L 594 RoHS:否 制造商:Omron Electronics 觸點(diǎn)形式:1 Form A (SPST-NO) 觸點(diǎn)電流額定值:150 A 線圈電壓:24 VDC 線圈電阻:144 Ohms 線圈電流:167 mA 切換電壓:400 V 安裝風(fēng)格:Chassis 觸點(diǎn)材料:
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