參數(shù)資料
型號(hào): ICS1893BFLFT
廠商: IDT, Integrated Device Technology Inc
文件頁數(shù): 89/133頁
文件大?。?/td> 0K
描述: PHYCEIVER LOW PWR 3.3V 48-SSOP
標(biāo)準(zhǔn)包裝: 1
系列: PHYceiver™
類型: PHY 收發(fā)器
規(guī)程: MII
電源電壓: 3.14 V ~ 3.47 V
安裝類型: 表面貼裝
封裝/外殼: 48-BSSOP(0.295",7.50mm 寬)
供應(yīng)商設(shè)備封裝: 48-SSOP
包裝: 標(biāo)準(zhǔn)包裝
產(chǎn)品目錄頁面: 1252 (CN2011-ZH PDF)
其它名稱: 800-1017-6
Chapter 7 Management Register Set
ICS1893BF, Rev. F, 5/13/10
May, 2010
59
ICS1893BF Data Sheet Rev. F - Release
Copyright 2009, IDT, Inc.
All rights reserved.
7.3.6 IEEE Reserved Bits (bits 1.10:7)
The IEEE reserves these bits for future use. When an STA:
Reads a reserved bit, the ICS1893BF returns a logic zero.
Writes a reserved bit, the STA must use the default value specified in this data sheet.
Both the ISO/IEC standard and the ICS1893BF reserve the use of some Management Register bits. ICS
uses some reserved bits to invoke ICS1893BF test functions. To ensure proper operation of the
ICS1893BF, an STA must maintain the default value of these bits. Therefore, ICS recommends that an STA
write the default value to all reserved bits during all Management Register write operations.
Reserved bits 1.10:7 are Command Override Write (CW) bits. When bit 16.15, the Command Register
Override bit, is logic:
Zero, the ICS1893BF prevents all STA writes to CW bits.
One, an STA can modify the value of these bits.
7.3.7 MF Preamble Suppression (bit 1.6)
Status Register bit 1.6 is the Management Frame (MF) Preamble Suppression bit. The ICS1893BF sets bit
1.6 to inform the STA of its ability to receive frames that do not have a preamble. When this bit is logic:
Zero, the ICS1893BF is indicating it cannot accept frames with a suppressed preamble.
One, the ICS1893BF is indicating it can accept frames that do not have a preamble.
Although the ICS1893BF supports Management Frame Preamble Suppression, its default value for bit 1.6
is logic zero. This default value ensures that bit 1.6 is backward compatible with the ICS1890, which does
not have this capability. As the means of enabling this feature, the ICS1893BF implements bit 1.6 as a
Command Override Write bit, instead of as a Read-Only bit as in the ICS1890. An STA uses the bit 1.6 to
enable MF Preamble Suppression in the ICS1893BF. [See the description of bit 16.15, the Command
7.3.8 Auto-Negotiation Complete (bit 1.5)
An STA reads bit 1.5 to determine the state of the ICS1893BF auto-negotiation process. The ICS1893BF
sets the value of this bit using two criteria. When its Auto-Negotiation sublayer is:
Disabled, the ICS1893BF sets bit 1.5 to logic zero.
Enabled, the ICS1893BF sets bit 1.5 to a value based on the state of the Auto-Negotiation State
Machine. In this case, it sets bit 1.5 to logic one only upon completion of the auto-negotiation process.
This setting indicates to the STA that a link is arbitrated and the contents of Management Registers 4, 5,
and 6 are valid. For details on the auto-negotiation process, see Section 6.2, “Functional Block:
Bit 1.5 is a latching high (LH) bit. (For more information on latching high and latching low bits, see Section
Note: An Auto-Negotiation Restart does not clear an LH bit. However, performing two consecutive reads
of this register provides the present state of the bit.
相關(guān)PDF資料
PDF描述
IDT723631L20PF IC FIFO SYNC 512X36 120-TQFP
VE-26F-IW-F2 CONVERTER MOD DC/DC 72V 100W
MS27473T18F35SC CONN PLUG 66POS STRAIGHT W/SCKT
MS27467P17B35SA CONN PLUG 55POS STRAIGHT W/SCKT
MS27508E20B2P CONN RCPT 65POS BOX MNT W/PINS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ICS1893BFT 功能描述:PHYCEIVER LOW PWR 3.3V 48-SSOP RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器,接收器,收發(fā)器 系列:PHYceiver™ 標(biāo)準(zhǔn)包裝:1,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SOIC(0.295",7.50mm 寬) 供應(yīng)商設(shè)備封裝:16-SOIC 包裝:帶卷 (TR)
ICS1893BK 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器,接收器,收發(fā)器 系列:PHYceiver™ 標(biāo)準(zhǔn)包裝:250 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
ICS1893BKI 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:否 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器,接收器,收發(fā)器 系列:PHYceiver™ 標(biāo)準(zhǔn)包裝:250 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):2/2 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-TSSOP(0.173",4.40mm 寬) 供應(yīng)商設(shè)備封裝:16-TSSOP 包裝:帶卷 (TR)
ICS1893BKILF 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器,接收器,收發(fā)器 系列:PHYceiver™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS422,RS485 電源電壓:4.5 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:14-SOIC(0.154",3.90mm 寬) 供應(yīng)商設(shè)備封裝:14-SOICN 包裝:剪切帶 (CT) 其它名稱:ISL31470EIBZ-T7ACT
ICS1893BKILFT 功能描述:PHYCEIVER LOW PWR 3.3V 56-VQFN RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器,接收器,收發(fā)器 系列:PHYceiver™ 標(biāo)準(zhǔn)包裝:1 系列:- 類型:線路收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):5/3 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:28-SOIC(0.295",7.50mm 寬) 供應(yīng)商設(shè)備封裝:28-SOIC 包裝:Digi-Reel® 產(chǎn)品目錄頁面:918 (CN2011-ZH PDF) 其它名稱:296-25096-6