STK1000/MAC interface

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STK1000 have two Media Access Control (MAC) interfaces for use with by the Ethernet physical layer chip.

Peripherals and connectors

Notes to developers

Default settings

Default setup is done by resistors connected to the PHY circuit. These settings can be changed through the management interface after reset.

Default settings set by resistors are:

  • Auto Negotiation enabled
  • Full duplex
  • Twisted pair operation mode
  • Both PHY's set to power down
  • LED1 (yellow LED) indicate Speed
  • LED2 (green LED) indicate Link/MII Isolate
  • TX slew rate 3.3 ns

Signals

Please refer the datasheet for the AVR32 processor on you daughter board for a description of these signals

SignalRMIIMIIManagement
COL Collision detect
CRS Carrier sense
MDC Management Data Clock
MDIO Management Data Input/Output
RXCLK Receive Clock
RXD[0..3]Receive Data bit 0 and 1Receive Data bit 0 to 3
RXDVCarrier sense / Data ValidData Valid
RXERReceive errorReceive error
SPEED Set to 1 to indicate 100 Mbit/s, 0 for 10 Mbit/s
TXCLKReference clockTransmit clock
TXD[0..3]Transmit Data bit 0 and 1Transmit Data bit 0 to 3
TXENTransmit enableTransmit enable
TXER Transmit error
Static version created: 2007-03-07
Copyright (c) 2007 Atmel Corporation