- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄11595 > KSZ8851-16MQL (Micrel Inc)IC CTLR MAC/PHY NON-PCI 128-PQFP PDF資料下載
參數(shù)資料
| 型號(hào)： | KSZ8851-16MQL |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 16/88頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC CTLR MAC/PHY NON-PCI 128-PQFP |
| 產(chǎn)品培訓(xùn)模塊： | KSZ8851 10/100 Embedded Controllers |
| 標(biāo)準(zhǔn)包裝： | 66 |
| 控制器類型： | 以太網(wǎng)控制器，MAC/PHY |
| 接口： | 總線 |
| 電源電壓： | 1.8V，2.5V，3.3V |
| 工作溫度： | 0°C ~ 70°C |
| 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) |
| 配用： | 576-3292-ND - BOARD EVALUATION KSZ8851-16MLL |
| 其它名稱： | 576-3253 |
第1頁第2頁第3頁第4頁第5頁第6頁第7頁第8頁第9頁第10頁第11頁第12頁第13頁第14頁第15頁當(dāng)前第16頁第17頁第18頁第19頁第20頁第21頁第22頁第23頁第24頁第25頁第26頁第27頁第28頁第29頁第30頁第31頁第32頁第33頁第34頁第35頁第36頁第37頁第38頁第39頁第40頁第41頁第42頁第43頁第44頁第45頁第46頁第47頁第48頁第49頁第50頁第51頁第52頁第53頁第54頁第55頁第56頁第57頁第58頁第59頁第60頁第61頁第62頁第63頁第64頁第65頁第66頁第67頁第68頁第69頁第70頁第71頁第72頁第73頁第74頁第75頁第76頁第77頁第78頁第79頁第80頁第81頁第82頁第83頁第84頁第85頁第86頁第87頁第88頁
Micrel, Inc.
KSZ8851-16/32 MQL/MQLI
August 2009
23
M9999-083109-2.0
generate interrupt to signal an energy detect event occurred if the corresponding enable bit[2] is set in IER (0x90) register.
Once the power management unit detects the PME output asserted or interrupt active, it will power up the host CPU and
issue a wakeup command which is a read cycle to read the Globe Reset Register (GRR at 0x26) to wake up the
KSZ8851M from the low power state to the normal power state in case the auto-wakeup enable bit[7] is disabled. When
KSZ8851M is at normal power state, it is able to transmit or receive packet from the cable.
Soft Power Down Mode
The soft power down mode is entered by setting bit[1:0]=10 in PMECR register. When KSZ8851M is in this mode, all PLL
clocks are disabled, the PHY and the MAC are off, all internal registers value will not change, and the host interface is
only used to wake-up this device from current soft power down mode to normal operation mode.
In order to go back the normal operation mode from this soft power down mode, the only way to leave this mode is
through a host wake-up command which the CPU issues to read the Globe Reset Register (GRR at 0x26).
Power Saving Mode
The power saving mode is entered when auto-negotiation mode is enabled, cable is disconnected, and by setting
bit[1:0]=11 in PMECR register and bit [10]=1 in P1SCLMD register. When KSZ8851M is in this mode, all PLL clocks are
enabled, MAC is on, all internal registers value will not change, and host interface is ready for CPU read or write. In this
mode, it mainly controls the PHY transceiver on or off based on line status to achieve power saving. The PHY remains
transmitting and only turns off the unused receiver block. Once activity resumes due to plugging a cable or attempting by
the far end to establish link, the KSZ8851M can automatically enabled the PHY power up to normal power state from
power saving mode.
During this power saving mode, the host CPU can program the bit[1:0] in PMECR register and set bit[10]=0 in P1SCLMD
register to transit the current power saving mode to any one of the other three power management operation modes.
Power Down
There is a full chip power-down mode if PWRDN (pin 36) is tied to low. When this pin is pulled-down, the entire chip
powers down. Transitioning this pin from pull-down to pull-up results in a power up and chip reset. The reset will set all
registers to default values. The host CPU will need to re-program all register values again after release of the PWRDN.
Wake-on-LAN
Wake-up frame events are used to wake the system whenever meaningful data is presented to the system over the
network. Examples of meaningful data include the reception of a Magic Packet, a management request from a remote
administrator, or simply network traffic directly targeted to the local system. In all of these instances, the network device is
pre-programmed by the policy owner or other software with information on how to identify wake frames from other network
traffic. The KSZ8851M controller can be programmed to notify the host of the wake-up frame detection with the assertion
of the interrupt signal (INTRN) or assertion of the power management event signal (PME).
A wake-up event is a request for hardware and/or software external to the network device to put the system into a
powered state (working).
A wake-up signal is caused by:
1. Detection of energy signal over a pre-configured value (bit 2 in ISR register)
2. Detection of a linkup in the network link state (bit 3 in ISR register)
3. Receipt of a Magic Packet (bit 4 in ISR register)
4. Receipt of a network wake-up frame (bit 5 in ISR register)
There are also other types of wake-up events that are not listed here as manufacturers may choose to implement these in
their own way.
Detection of Energy
The energy is detected from the cable and is continuously presented for a time longer than pre-configured value,
especially when this energy change may impact the level at which the system should re-enter to the normal power state.
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LTC4278CDKD#PBF | IC PD IEEE 802.3AT 25.5W 32-DFN |
| KSZ8873MLL | IC ETHERNET SWITCH 3PORT 64-LQFP |
| KSZ8863RLL | IC ETHERNET SW 3PORT 48-LQFP |
| KSZ8863MLL | IC ETHERNET SW 3PORT 48-LQFP |
| KSZ8863FLL | IC ETHERNET SW 3PORT 48-LQFP |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KSZ8851-16MQL-EVAL | 功能描述:以太網(wǎng)開發(fā)工具 Single Ethernet Port + Generic (16-bit) Bus Interface(Lead Free) Eval Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類型:RMII 工作電源電壓: |
| KSZ8851-16MQLI | 功能描述:以太網(wǎng) IC Single Ethernet Port + Generic (16-bit) Bus Interface(Lead Free, I-Temp) 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 |
| KSZ8851-32MQL | 功能描述:以太網(wǎng) IC 10/100BT Ethernet MAC + PHY with Generic (32-bit) Bus Interface, 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 |
| KSZ8851-32MQLI | 功能描述:以太網(wǎng) IC 10/100BT Ethernet MAC + PHY with Generic (32-bit) Bus Interface (I-Temp) 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 |
| KSZ8851MLL | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:Single Port MAC/PHY Controller with Non PCI Interface |
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。