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| 型號(hào)： | 1893YI-10 |
| 廠商： | INTEGRATED DEVICE TECHNOLOGY INC |
| 元件分類： | 網(wǎng)絡(luò)接口 |
| 英文描述： | DATACOM, INTERFACE CIRCUIT, PQFP64 |
| 封裝： | 10 X 10 MM, TQFP-64 |
| 文件頁(yè)數(shù)： | 122/152頁(yè) |
| 文件大?。?/td> | 943K |
| 代理商： | 1893YI-10 |
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Chapter 8
Management Register Set
ICS1893 Rev C 6/6/00
June, 2000
71
ICS1893 - Release
Copyright 2000, Integrated Circuit Systems, Inc.
All rights reserved.
8.3.11
Link Status (bit 1.2)
The purpose of this bit 1.2 (which is also accessible through the QuickPoll Detailed Status Register, bit
17.0) is to determine if an established link is dropped, even momentarily. To indicate a link that is:
Valid, the ICS1893 sets bit 1.2 to logic one.
Invalid, the ICS1893 clears bit 1.2 to logic zero.
This bit is a latching low (LL) bit that the Link Monitor function controls. (For more information on latching
high and latching low bits, see Section 8.1.4.1, “Latching High Bits”and Section 8.1.4.2, “Latching Low
Bits”.) The Link Monitor function continually observes the data received by either its 10Base-T or
100Base-TX Twisted-Pair Receivers to determine the link status and stores the results in the Link Status
bit.
The criterion the Link Monitor uses to determine if a link is valid or invalid depends on the following:
Type of link
Present link state (valid or invalid)
Presence of any link errors
Auto-negotiation process
For more information on the Link Monitor Function (relative to the Link Status bit), see Section 7.5.5,
“10Base-T Operation: Link Monitor”.
8.3.12
Jabber Detect (bit 1.1)
The purpose of this bit is to allow an STA to determine if the ICS1893 detects a Jabber condition as defined
in the ISO/IEC specification.The ICS1893 Jabber Detection function is controlled by the Jabber Inhibit bit in
the 10Base-T Operations register (bit 18.5). To detect a Jabber condition, first the ICS1893 Jabber
Detection function must be enabled. When bit 18.5 is logic:
Zero, the ICS1893 disables Jabber Detection and sets the Jabber Detect bit to logic zero.
One, the ICS1893 enables Jabber Detection and sets the Jabber Detect bit to logic one upon detection
of a Jabber condition. When no Jabber condition is detected, the Jabber Detect bit is not altered.
Note:
1.
The Jabber Detect bit is accessible through both the Status register (as bit 1.1) and the QuickPoll
Detailed Status Register (as bit 17.2). A read of either register clears the Jabber Detect bit.
2.
The Jabber Detect bit is a latching high (LH) bit. (For more information on latching high and latching low
bits, see Section 8.1.4.1, “Latching High Bits”and Section 8.1.4.2, “Latching Low Bits”.)
8.3.13
Extended Capability (bit 1.0)
The STA reads bit 1.0 to determine if the ICS1893 has an extended register set. In the ICS1893 this bit is
always logic one, indicating that it has extended registers.
相關(guān)PDF資料 |
PDF描述 |
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| 1894-40KLF | DATACOM, INTERFACE CIRCUIT, QCC40 |
| 1894-40KLFT | DATACOM, INTERFACE CIRCUIT, QCC40 |
| 1895230000 | 15 A, STRIP TERMINAL BLOCK, 2 ROWS, 2 DECKS |
| 18F-08P-241 | 8 CONTACT(S), CABLE MOUNT, MINI DIN CONNECTOR, PLUG |
| 18F-08P-244 | 8 CONTACT(S), CABLE MOUNT, MINI DIN CONNECTOR, PLUG |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| 1893YI-10LF | 功能描述:以太網(wǎng) IC 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER 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 |
| 1893YI-10LFT | 功能描述:以太網(wǎng) IC 3.3V 10/100 BASE TX INTEGRATED PHYCEIVER 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 |
| 1894 | 功能描述:支架與墊片 HEX .187X.625 ALUM RoHS:否 制造商:Schurter 類型:Transipillar Spacers 長(zhǎng)度:16 m 螺紋大小:M4 外徑:10 mm 材料:Nylon with Steel 電鍍:Zinc |
| 1894# | 制造商:Fluke Electronics 功能描述:BNC (F)/BANANA PLUG 制造商:Pomona Electronics 功能描述: |
| 1894 | 制造商:Pomona Electronics 功能描述:ADAPTER BNC FEMALE-BANANA PLUG 制造商:Pomona Electronics 功能描述:ADAPTER, BNC FEMALE-BANANA PLUG |
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