參數(shù)資料
型號: CS8952-IQZ
廠商: Cirrus Logic Inc
文件頁數(shù): 74/81頁
文件大?。?/td> 0K
描述: IC TXRX 100/10 PHY 100TQFP
標準包裝: 90
類型: 收發(fā)器
規(guī)程: MII
電源電壓: 4.75 V ~ 5.25 V
安裝類型: 表面貼裝
封裝/外殼: 100-LQFP
供應商設備封裝: 100-TQFP(14x14)
包裝: 托盤
產(chǎn)品目錄頁面: 759 (CN2011-ZH PDF)
其它名稱: 598-1208
CS8952
CrystalLAN 100BASE-X and 10BASE-T Transceiver
76
DS206F1
REPEATER - REPEATER Mode Select. Input, Pin 16.
This pin controls the operation of the CRS (Carrier Sense) pin as shown below:
At power-up or at reset, the value on this pin is latched into bit 12 of the PCS Sub-Layer Configuration
Register (address 17h). This pin includes a weak internal pull-down (> 20 k
), or the value may be set
by an external 4.7 k
pull-up or pull-down resistor.
SPD10 - 10 Mb/s Speed Indication. Output, Pin 68.
This pin is asserted high when the CS8952 is configured for 10 Mb/s operation. This pin can be used to
drive a low-current LED to indicate 10 Mb/s operation.
SPD100 - 100 Mb/s Speed Indication. Output, Pin 67.
This pin is asserted high when the CS8952 is configured for 100 Mb/s operation. This pin can be used
to drive a low-current LED to indicate 100 Mb/s operation.
TCM - Transmit Clock Mode Initialization. Input, Pin 59.
The logic value on this three-level pin during power-up or reset determines whether TX_CLK is used as
an input or an output, and whether an external 25 MHz clock reference is provided on the CLK25 output
pin.
TEST[1:0] - Factory Test. Input, Pins 24 and 25.
These pins are for factory test only. They include weak internal pull-downs (> 20 k
), and should be tied
directly to VSS for normal operation.
REPEATER pin
DUPLEX mode
CRS Indicates
high
don’t care
receive activity only
low
full duplex
receive activity only
low
half duplex
receive or transmit activity
TCM pin
TX_CLK mode
CLK25 status
high
TX_CLK is input
CLK25 pin is an output
floating
TX_CLK is input
CLK25 is disabled
low
TX_CLK is output
CLK25 is disabled
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