- 您現(xiàn)在的位置：買賣IC網(wǎng) > PDF目錄16827 > KSZ8895MQ-EVAL (Micrel Inc)BOARD EVALUATION FOR KSZ8895MQ PDF資料下載
參數(shù)資料
| 型號： | KSZ8895MQ-EVAL |
| 廠商： | Micrel Inc |
| 文件頁數(shù)： | 45/119頁 |
| 文件大?。?/td> | 0K |
| 描述： | BOARD EVALUATION FOR KSZ8895MQ |
| 標(biāo)準(zhǔn)包裝： | 1 |
| 主要目的： | 接口，以太網(wǎng)控制器（PHY 和 MAC） |
| 嵌入式： | 否 |
| 已用 IC / 零件： | KSZ8895MQ |
| 已供物品： | 板 |
| 相關(guān)產(chǎn)品： | 576-3753-ND - IC ETHERNET SW 5PORT 128-PQFP |
| 其它名稱： | 576-3871 |
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頁當(dāng)前第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頁第89頁第90頁第91頁第92頁第93頁第94頁第95頁第96頁第97頁第98頁第99頁第100頁第101頁第102頁第103頁第104頁第105頁第106頁第107頁第108頁第109頁第110頁第111頁第112頁第113頁第114頁第115頁第116頁第117頁第118頁第119頁
Micrel, Inc.
KSZ8895MQ/RQ/FMQ
On-Chip Termination Resistors
The KSZ8895MQ/RQ/FMQ reduces the board cost and simplifies the board layout by using on-chip termination
resistors for all ports and RX/TX differential pairs without the external termination resistors. The combination of the
on-chip termination and internal biasing will save about 500 to 1000mw in power consumption as compared to using
external biasing and termination resistors, and the transformer will not consume power any more. The center tap of
the transformer does not need to be tied to the analog power and does not tie the center taps together between RX
and TX pairs for its application.
Internal 1.2V LDO Controller
The KSZ8895MQ/RQ/FMQ reduces board cost and simplifies board layout by integrating an internal 1.2V LDO
controller to drive a low cost MOSFET to supply the 1.2V core power voltage for a single 3.3V power supply solution.
The internal 1.2V LDO controller can be disabled by pin 126 IN_PWR_SEL pull-down in order to use an external
1.2V LDO.
Functional Overview: Power Management
The KSZ8895MQ/RQ/FMQ supports a full chip hardware power down mode. When the PWRDN pin 47 is internally
activated low (pin PWRDN = 0), the entire chip is powered down. If this pin is de-asserted, the chip will be reset
internally.
The KSZ8895MQ/RQ/FMQ can also use multiple power levels of 3.3V, 2.5V or 1.8V for VDDIO to support different
I/O voltage.
The KSZ8895MQ/RQ/FMQ supports enhanced power management in a low power state, with energy detection to
ensure low power dissipation during device idle periods. There are five operation modes under the power
management function which are controlled by the Register 14 bit[4:3] and the Port Register Control 13 bit 3 as shown
below:
Register 14 bit [4:3] = 00 Normal Operation Mode
Register 14 bit [4:3] = 01 Energy Detect Mode
Register 14 bit [4:3] = 10 Soft Power Down Mode
Register 14 bit [4:3] = 11 Power Saving Mode
The Port Register 29, 45, 61, 77, 93 Control 13 bit 3 = 1 are for the Port Based Power-Down Mode.
Table 2 indicates all internal function blocks’ status under four different power management operation modes.
KSZ8895MQ/RQ/FMQ
Function Blocks
Power Management Operation Modes
Normal Mode
Power Saving Mode
Energy Detect Mode
Soft Power Down Mode
Internal PLL Clock
Enabled
Disabled
Tx/Rx PHY
Enabled
Rx unused block disabled
Energy detect at Rx
Disabled
MAC
Enabled
Disabled
Host Interface
Enabled
Disabled
Table 2. Internal Function Block Status
Normal Operation Mode
This is the default setting bit [4:3] = 00 in register 14 after chip power-up or hardware reset. When
KSZ8895MQ/RQ/FMQ is in normal operation mode, all PLL clocks are running, PHY and MAC are on, and the host
interface will be ready for CPU read or write.
During normal operation mode, the host CPU can set the bit [4:3] in register 14 to change the current normal
operation mode to any one of the other three power management operation modes.
March 12, 2014
31
Revision 1.7
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| 202D285-3/42-0 | BOOT MOLDED |
| 0210391086 | CABLE JUMPER 1MM .178M 37POS |
| 202F221-50-0 | BOOT MOLDED |
| 222F274-51-0 | BOOT MOLDED |
| 202A196-25-0 | BOOT MOLDED |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| KSZ8895MQI | 功能描述:以太網(wǎng) IC 5-Port 10/100 Ethernet Switch with 1x MII Interface (Industrial Grade) 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 |
| KSZ8895MQXCA | 功能描述:Ethernet Switch 10/100 Base-T/TX I2C, SPI Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關(guān) 接口:I2C，SPI 標(biāo)準(zhǔn):10/100 Base-T/TX 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:129mA 工作溫度:0°C ~ 70°C 封裝/外殼:128-BFQFP 供應(yīng)商器件封裝:128-PQFP（14x20） 標(biāo)準(zhǔn)包裝:66 |
| KSZ8895MQXIA | 功能描述:Ethernet Switch 10/100 Base-T/TX I2C, SPI Interface 128-PQFP (14x20) 制造商:microchip technology 系列:- 包裝:托盤 零件狀態(tài):有效 協(xié)議:以太網(wǎng) 功能:開關(guān) 接口:I2C，SPI 標(biāo)準(zhǔn):10/100 Base-T/TX 電壓 - 電源:1.8V，2.5V，3.3V 電流 - 電源:129mA 工作溫度:-40°C ~ 85°C 封裝/外殼:128-BFQFP 供應(yīng)商器件封裝:128-PQFP（14x20） 標(biāo)準(zhǔn)包裝:66 |
| KSZ8895RQ | 功能描述:以太網(wǎng) IC 5-port Switch, one SW5-RMII and one P5-RMII Interface 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 |
| KSZ8895RQ TR | 功能描述:以太網(wǎng) IC 5-port Switch, one SW5-RMII and one P5-RMII Interface 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 |
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。