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To improve the system performance, IPA LF provides a hardware interrupt pin to indicate the link, speed and duplex status change. Modify 7. Modify register 5. Add the order information for lead free package. Modify MII reg3 content in page Remove Circuit diagram. Modify Pin assignments in page 5.

Modify register 17[] in page Modify register Remove default PHY address description in Page Revise the description of Reg 1. Add Clock and Power Source timing chart. Legal Disclaimer This document probably contains the inaccurate data or typographic error.

In order to keep this document correct, IC Plus reserves the right to change or improve the content of this document. AVDD33 AGND MDIO MDC ISET DPLX SPD RPTR RXD0 RXD1 RXD2 RXD3 DGND DVDD33 APS ISOL X1 X2 INTR DGND 2. REGIN 1. TXD3 4. TXD2 5.

TXD1 6. TXD0 Oct. The clock rate can be up to 10MHz. Notice: This pin is pulled down internally. An external 5. When configured as 10Base-T, the output is Manchester code. The power usage is at minimum when this pin is activated. PU Set high to enable full duplex. Set PU high to enable auto-negotiation mode, set low to force mode. Please refer to power down modes description for more information.

Set low for SNI mode. And then, in normal operation after initial reset, they are used as driving pins for status indication LED. The driving polarity, active low or active high, is determined by each latched status of the PHY address [] during reset. If latched status is high then it will be active low, and if latched status is Low then it will be active high. Default is first LED mode.

Mode2: Active when linked and blinking when transmitting or receiving data. Mode2: Active when in Full Duplex operation and blinking when collisions occur. Mode2: Active when linked in 10Base-T mode. Mode2: Active when linked in Base-TX mode. Mode2: Reserved. It must be left open when X1 is driven with an external 25MHz oscillator.

Please refer to the clock source description. For a complete reset function. Chip will be able to operate after 2. The 2. Regulator Power Input: This is a regulator power input from Pin No external regulator needed. This bit is self-clearing.

IPA LF requires at least us to link after programming this bit. This bit will turn down the power of the PHY chip and the internal 0, RW crystal oscillator circuit if this bit is enabled. One idle bit is required between any two management transactions as per IEEE Total of 32 bits allocate in these 2 registers and they can return all zeroes in all bits if desired. No other protocols are supported. The content changes after the successful Auto-negotiation if Next-pages are supported.

Pin48 will be high impedance if this bit is set low. Control Registers Reserved Reserved Force to 0, in application. Any change of this bit is not recommend. IPA LF has several major functions: 1.

IPA LF advertise its own ability and also detects corresponding operational mode from the other party, eventually both sides will come to an agreement for their optimized transmission mode. Flow Control ability 2. LED configuration access 3. Operation modes for both full and half duplex 4. Interrupt function 8. Repeater Mode 9. When transmit error has occurred during a transmitting process, the H error code will be sent. The idle code is sent between two packets. The 5 bits 5B data is decoded into four bits nibble data.

The peak in the radiated signal is reduced significantly by scrambling the transmitted signal. Scrambler adds a random generator to the data signal output. The resulting signal is with fewer repetitive data patterns. The scrambled data stream is descrambled at the receiver by adding another random generator to the output.

This helps to remove the high frequency noise generated by the twisted pair cables. Clock Recovery: The receiver circuit recovers data from the input stream by regenerating clocking information embedded in the serial stream. When a valid data is present in the medium, squelch block will generate a signal to indicate the data has received.

Then the data are mapped to 4 bits nibbles and transmitted onto MAC interface. The adaptive equalizer will compensate the loss of signals during the transmission, while base-line wander monitors and corrects the equalization process. If a valid data is detected then the data are parallelized in Serial to Parallel block, which it converts NRZI coded data form back to scrambled data. The scrambled data are descrambled and converted back to 4 bits—wide format data and then feed into MAC.

It can operate either in 10Mbps or Mbps environment, and operate at 2. MII consists of 4 bit wide data path for both transmit and receive. CRS, Carrier Sense, is used for signaling data transmission is in process while COL, Collision, is used for signaling the occurrence of collision during transmission. This clock is used as reference for transmit, receive and control.


IP101ALF Transceiver. Datasheet pdf. Equivalent



IC Plus IP101A


IEC 61892 PDF




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