參數(shù)資料
型號(hào)： KSZ8993
廠商： Micrel Inc
文件頁數(shù)： 14/35頁
文件大?。?/td> 0K
描述： IC SWITCH 10/100 3PORT 128PQFP
標(biāo)準(zhǔn)包裝： 66
系列： *
類型： *
應(yīng)用： *
安裝類型： 表面貼裝
封裝/外殼： 128-BFQFP
供應(yīng)商設(shè)備封裝： 128-PQFP（14x20）
包裝： 托盤
產(chǎn)品目錄頁面： 1081 (CN2011-ZH PDF)
其它名稱： 576-1032
May 2005
21
KS8993
Micrel
MII Interface Operation
The MII (Media Independent Interface) operates in either a forward or reverse mode. In the forward mode, the KS8993 MII acts
like a MAC and in the reverse mode, it acts like a PHY device. This interface is specified by the IEEE 802.3 committee and
provides a common interface between physical layer and MAC layer devices. There are two distinct groups, one being for
transmission and the other for receiving. The table below describes the signals used in this interface in forward and reverse
modes.
This interface is a nibble wide data interface and therefore runs at 1/4 the network bit rate (not encoded). Additional signals
on the transmit side indicate when data is valid or when an error occurs during transmission. Likewise, the receive side has
indicators that convey when the data is valid and without physical layer errors.
For half-duplex operation there is a signal that indicates a collision has occurred during transmission.
Note that the signal MRXER is not provided on the MII interface for the KS8993 for reverse operation and MTXER is not
represented for forward mode. Normally this would indicate a receive / transmit error coming from the physical layer /MAC
device, but is not appropriate for this configuration. If the connecting device has a MRXER pin, this should be tied low on the
other device for reverse or if it has a MTXER pin in the forward mode it should also be tied low on the other device.
Reverse MII Mode Connection
Forward MII Mode Connection
External MAC
KS8993 Signal
Description
External PHY
KS8993 Signal
MTXEN
Transmit enable
MTXEN
MRXDV
MTXER
Transmit error
MTXER
Not used
MTXD3
MTXD[3]
Transmit data bit 3
MTXD3
MRXD[3]
MTXD2
MTXD[2]
Transmit data bit 2
MTXD2
MRXD[2]
MTXD1
MTXD[1]
Transmit data bit 1
MTXD1
MRXD[1]
MTXD0
MTXD[0]
Transmit data bit 0
MTXD0
MRXD[0]
MTXC
MTXCLK
Transmit clock
MTXC
MTXCLK
MCOL
Collision detection
MCOL
MCOLIN
MCRS
Carrier sense
MCRS
MRXDV
Receive data valid
MRXDV
MTXEN
MRXER
Not used
Receive error
MRXER
MTXER
MRXD3
MRXD[3]
Receive data bit 3
MRXD3
MTXD[3]
MRXD2
MRXD[2]
Receive data bit 2
MRXD2
MTXD[2]
MRXD1
MRXD[1]
Receive data bit 1
MRXD1
MTXD[1]
MRXD0
MRXD[0]
Receive data bit 0
MRXD0
MTXD[0]
MRXC
MRXCLK
Receive clock
MRXC
MRXCLK
Table 2. MII Interconnect
相關(guān)PDF資料
PDF描述
KSZ8993MI IC SWITCH 10/100 W/TXRX 128PQFP
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KSZ8993-EVAL 功能描述:BOARD EVALUATION FOR KSZ8993 RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)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(cè) 其它名稱:520-1035
KSZ8993F 功能描述:以太網(wǎng) IC Single Chip Fast Ethernet Media Converter - Lead free 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
KSZ8993F-A1 功能描述:IC CONV MED 10/100 3PORT 128PQFP RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
KSZ8993F-EVAL 功能描述:BOARD EVALUATION FOR KSZ8993F RoHS:是 類別:編程器，開發(fā)系統(tǒng) >> 過時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類型:MCU 適用于相關(guān)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(cè) 其它名稱:520-1035
KSZ8993FL 功能描述:以太網(wǎng) IC 2+1 Port 10/100 Switch w/Transceivers & TS-1000 OAM, single 3.3V supply, 128-PQFP, Lead free 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
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