參數(shù)資料
型號: 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): 21/92頁
文件大小: 1352K
代理商: 21440
21440 Multiport 10/100Mb/s Ethernet Controller
3-1
Register Descriptions
3
This section describes the 21440 registers. Each of the 21440 ports includes an independent
register set, enabling maximum flexibility.
The registers in each port are divided into two groups:
Control and status registers (CSRs)
Network statistics counters
3.1
Register Conventions
All the registers in the 21440 are implemented in each of its eight ports, unless mentioned
otherwise in the text.
In the register description tables throughout this chapter, the following abbreviations are used to
indicate register access modes:
3.1.1
Access Rules
The following access rules must be followed when accessing registers:
Unlisted addresses are reserved and must not be accessed.
Reserved bits on registers must be written as
0
and are unpredictable on read.
The configuration and the serial registers are writable only when the port is in stop state (as
reported in the interrupt status register
INT_STT), following transmit and receive disable
programming.
Multibyte registers are ordered from low to high (the lower address points to the lower byte).
R
=
Readable only.
W
=
Writable only.
R/W
=
Readable and writable.
相關PDF資料
PDF描述
21446 Net186-EVAL-KT? 24.9KB (PDF)
2145 MONITORKABEL SUN BUCHSE SVGA STECKER
2148C MONITORKABEL SUN STECKER SVGA BUCHSE
2148D MONITORKABEL SUN STECKER SVGA STECKER
2148 MONITORKABEL SUN VGA ADAPTER
相關代理商/技術參數(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:低信號繼電器 - PCB OMR-C-105H V300 RoHS:否 制造商:NEC 觸點形式:2 Form C (DPDT-BM) 觸點電流額定值: 線圈電壓:5 V 最大開關電流: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:低信號繼電器 - PCB OMR-C-109H V530 RoHS:否 制造商:NEC 觸點形式:2 Form C (DPDT-BM) 觸點電流額定值: 線圈電壓:5 V 最大開關電流: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 觸點形式:1 Form A (SPST-NO) 觸點電流額定值: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 安裝風格:Chassis 觸點材料: