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NXHAL-Ethernet 2-Port Switch

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Facts

  • Initialization of the integrated transceivers (Dual-PHY) (only on netX50 / 100 / 500)
  • Configuration of the Ethernet Switch
  • Getting of Status Information of the Ethernet Switch
  • Sending of Ethernet frame transmission requests to the Ethernet Switch
  • Getting of Confirmations about processed transmission processes
  • Getting of Ethernet frame indications from the Ethernet Switch 
  • Configuration of link/activity LED behaviour for application specific use
Subject Data
Technical Data
  • 2 integrated MACs, each 10BASE-T/100BASE-TX/FX operation in full/half duplex
  • Quality of Service capable: 2 Traffic Classes (adjustable)
  • Promiscuous mode (for monitoring purposes)
  • Multicast pre-filtering capable
  • Number of Ethernet frame buffers: 20
  • Configurable LED behavior
  • possibility to suppress confirmation of processed transmission requests
  • Timestamping of incoming and outgoing Ethernet Frames at MII in IEEE1588 format
  • Dynamic learning based on 12-Bit hashing, aging 
  • Forwarding using „Store and Forward“ mechanism
Limitations
  • No frame buffer management - each Ethernet frame occupies 1560 Bytes Buffer
  • No Gigabit operation
  • No MAC-pause mechanism in full-duplex, no back-pressure in half-duplex
  • No broadcast-storm control 
  • No static learning
Version
Revision:

3.3.x.x

Date: 19.08.2010
Status: Release
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Description

The Hardware Abstraction Layer is a set of C-Functions which work as an
interface between the netX Software Application and the netX Ethernet 2-Port Switch. The
aim is to have an interface which is operating independent and downwards
compatible between all existing and future netX Network Controllers. They are
easier to use as writing or reading directly the Controller Registers.

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