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參數(shù)資料
| 型號： | KS8997 |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 8/39頁 |
| 文件大小： | 0K |
| 描述： | IC SWITCH 10/100 8PORT 128PQFP |
| 標準包裝： | 66 |
| 系列： | * |
| 類型： | * |
| 應用： | * |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 128-BFQFP |
| 供應商設備封裝： | 128-PQFP（14x20） |
| 包裝： | 散裝 |
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Micrel, Inc.
KS8997/KSZ8997
February 2007
16
M9999-022807-1.1
MDI/MDI-X Auto Crossover
The KS8997 supports MDI/MDI-X auto crossover. This facilitates the use of either a straight connection CAT-5 cable
or a crossover CAT-5 cable. The auto-sense function will detect remote transmit and receive pairs, and correctly
assign the transmit and receive pairs from the Micrel device. This can be highly useful when end users are unaware
of cable types and can also save on an additional uplink configuration connection.
The auto MDI/MDI-X is achieved by the Micrel device listening for the far end transmission channel and assigning
transmit/receive pairs accordingly.
Auto-Negotiation
The KS8997 conforms to the auto-negotiation protocol as described by the 802.3 committee. Auto-negotiation allows
UTP (Unshielded Twisted Pair) link partners to select the best common mode of operation. In auto-negotiation the
link partners advertise capabilities across the link to each other. If auto-negotiation is not supported or the link partner
to the KS8997 is forced to bypass auto-negotiation, then the mode is set by observing the signal at the receiver. This
is known as parallel mode because while the transmitter is sending auto-negotiation advertisements, the receiver is
listening for advertisements or a fixed signal protocol.
The flow for the link set up is depicted below. Note that the KS8997 only supports auto-negotiation and not forced
modes.
Figure 4. Auto-Negotiation
相關PDF資料 |
PDF描述 |
|---|---|
| KS8999I | IC SWITCH 9-PORT 10/100 208-PQFP |
| KSZ8001LI TR | IC TXRX PHY 10/100 3.3V 48LQFP |
| KSZ8031RNLI | TXRX PHY 10/100 3.3V 24-QFN |
| KSZ8041MLL TR | TXRX 10/100 3.3V PHY MII 48LQFP |
| KSZ8041NLA3TR | TRANSCEIVER 10/100 32-MLF |
相關代理商/技術參數(shù) |
參數(shù)描述 |
|---|---|
| KS8997_07 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:8-Port 10/100 Integrated Switch with PHY and Frame Buffer |
| KS8997-EVAL | 功能描述:BOARD EVAL EXPERIMENT FOR KS8997 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 過時/停產(chǎn)零件編號 系列:- 標準包裝:1 系列:- 類型:MCU 適用于相關產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶手冊 其它名稱:520-1035 |
| KS8999 | 功能描述:IC SWITCH 10/100 9PORT 208PQFP RoHS:否 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調(diào)幀器 應用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA（27x27） 包裝:散裝 |
| KS8999_11 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Integrated 9-Port 10/100 Switch with PHY and Frame Buffer |
| KS8999-EVAL | 功能描述:BOARD EVAL EXPERIMENT FOR KS8999 RoHS:否 類別:編程器，開發(fā)系統(tǒng) >> 評估演示板和套件 系列:- 產(chǎn)品培訓模塊:Obsolescence Mitigation Program 標準包裝:1 系列:- 主要目的:電源管理，電池充電器 嵌入式:否 已用 IC / 零件:MAX8903A 主要屬性:1 芯鋰離子電池 次要屬性:狀態(tài) LED 已供物品:板 |
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