Each Next Page received in the registers should be read before a new Next Page to be transmitted is loaded in Register 7. For example, Register 29 sets the applicable page of Register This bit indicates whether the receive pair 3,6 is polarity reversed in MDI mode of operation. Contact Marvell Field Application Engineers for more information. The COMA low power mode cannot be enabled as long as hardware reset is enabled. Further, Marvell does not warrant the accuracy or completeness of the information, text, graphics, or other items contained within this document. See Register 28 page 5 bits 5:

Uploader: Darisar
Date Added: 4 January 2018
File Size: 46.7 Mb
Operating Systems: Windows NT/2000/XP/2003/2003/7/8/10 MacOS 10/X
Downloads: 56664
Price: Free* [*Free Regsitration Required]

The polarity and magnitude of the reflection together with the distance will indicate the type of discontinuity. Auto-Negotiation is initiated upon any of the following conditions: The polarity correction status is indicated by Register When Auto-Media detect is enabled, either register set can be read or written to by selecting Register Details of each mode are described below.

Refer to Figure If during the energy detect modes, the PHY wakes up and starts operating at a normal mode, Register Upon initialization, the initial scrambling seed is determined by the PHY address. Loopback is enabled by setting Register 0.


LWIP on Gigabit Ethernet MAC (raw api)

MDC is the management data clock input and, it can run from DC to a maximum rate of 8. See the next table for TBI pin definitions. A description of the registers can be found in the Register Description. In order to exit these modes of operation, bits 9: This document contains specifications on a product that is in final release.

Gigabit phy ethernet –

The 88E device operates as the Slave port of the bus interface, and all references to Slave refer to the 88E device. The Slave recovers nitegrated this error condition, and waits for the next transfer to begin.

Register 22 is used to select which MDI pair has its results shown in Register Note that during hardware reset it is undetermined whether the PHY will be configured in fiber or copper mode.

If so, the 88E device and the remote device negotiate the speed and duplex with which to operate. Transmit – Code Group bits 4 gigabig 9. See Page 74 for a description of Energy Detect sleep mode. I can’t see why a specific port should impose such a severe limitation.

88E datasheet_1(1)–英文资料_百度文库

The register limit is 32 registers. There is one supply option for VDDO: The transmit and receive FIFOs are enabled in both modes. They are always there, and always available. Search everywhere only in this topic.


Gigabit Phy

The address remains valid between operations as long as chip power is maintained. Data transfer with Acknowledge is always obligatory.

In BASE-T mode, receive polarity errors are automatically corrected based on the sequence of idle symbols. The 88E device monitors the signals of the serial interface lines and the MDI lines. No external termination is required.

Hence, if the user wants to be able to monitor the Energy Detect status for the other medium, the mwc bits in Register 26 should not be set.

The INTn pin is asserted as long as one interrupt status bit is set in register 19 with its corresponding interrupt enable bit set in register These signals can be used as signal detect.