Electronics News
Archive : 22 February 2008 год
With the ever-growing use of global Internet devices and the uneven distribution of network addresses, certain large organizations and geographic regions are experiencing a shortage of unique IP addresses. IPv6 uses a 128-bit address field, which provides room for 3.4*(10^38) unique addresses, more than enough for every person to own thousands of addresses and for every device to connect directly to the Internet. Because NetX Duo is an IPv4 and IPv6 dual TCP/IP stack, it can handle both IPv4 and IPv6 protocols as well as being highly optimized for performance-critical embedded devices. Its modular architecture allows designers to customize various components based on their system requirements. NetX Duo APIs are fully backward compatible with the IPv4 services in NetX. Therefore existing NetX applications can be migrated to NetX Duo with minimal porting effort. NetX Duo has been tested for RFC compilance using the TAHI test suite (phase 2). This ensures that NetX Duo conforms to RFC standards and offers complete interoperability with devices from other vendors.
NetX Duo implements the following protocols and RFCs
All IPv4 features available in NetX 5.x
IPv6 header and extension header processing
Neighbor Discovery Protocol
Router Discovery Protocol
Stateless Address Autoconfiguration
Duplicate Address Detection
RFC2460: Internet Protocol, Version 6 (IPv6) Specification
RFC2461: Neighbor Discovery for IP Version 6
RFC2462: IPv6 Stateless Address Autoconfiguration
RFC2464: Transmission of IPv6 Packets over Ethernet Networks
RFC4291: Internet Protocol Version 6 (IPv6) Addressing Architecture
RFC4443: Internet Control Message Protocol (ICMPv6) for the Internet Protocol Version 6 (IPv6) Specification
Thanks to implementing the IPv6 protocol, NetX Duo also enjoys several new capabilities. For the first time, nodes can configure their interface addresses automatically through the Stateless Address Autoconfiguration protocol. As well, nodes can use layered structures to enable devices to more efficiently process IPv6 headers. NetX and NetX Duo are available immediately from Express Logic, with license prices starting at $12,500 for NetX and $18,750 for NetX Duo, with no run-time royalties.
AdvancedIO Systems announced the V1021 configurable 10GbE connectivity and packet processing XMC/PMC module. Thanks to the integration of SFP+, the latest 10-gigabit optical transceiver technology, the V1021 provides high bandwidth data-pipe performance with flexible processing functionality in a single chassis slot. This optimization enables system developers in resource-demanding real-time applications such as radar, signals intelligence, and sensor processing to pack more functionality into a system while reducing its size and cost.
AdvancedIO’s V1021 is an open-standard form factor module that solves the problem of connecting real-time embedded systems to extreme high-speed Ethernet networks, a problem many liken to drinking from a fire hose. Like AdvancedIO’s deployed V1020 product, the V1021 can also be used as a high-speed pipe to directly interconnect embedded processing systems.
Features of AdvancedIO’s V1021 include
* Standard VITA 42.3 XMC/PMC mezzanine module that integrates onto standard off-the-shelf platforms for wide applicability
* Standard PCI-X and PCI Express host interfaces for easy integration and high performance
* SFP+ 10-Gigabit Ethernet optical transceiver technology which is being widely adopted throughout the networking industry
* Customizable functionality via Xilinx FPGA for application optimization and in-field upgrades
* Compatible optimized udpXG communications protocol for offloading and streamXG data streaming acceleration cores and software designed specifically for real-time applications
* Standard sockets-based software API for easy integration and future software portability
The V1021 offers a migration path. Because of its compatibility with AdvancedIO’s V1020 software and functionality, existing V1020 customers who require higher-density systems can deploy the V1021 in its place without making any application source code changes. As well, both modules use the same fiber optic LC connectors.
STMicroelectronics announced a series of high-temperature TRIACs, which maintain full specified performance up to a junction temperature of 150 degrees C, and which deliver outstanding turn-off capability – usefull for appliance motor-control applications, in particular – at their maximum temperature. The use of conventional TRIACs, which are specified at 125 degrees C junction temperature, can cause a loss of control of the AC load in environments above this temperature, which can lead to hazardous application behavior, due to device parameter derating above 125 degrees C. However, ST’s new HiTj Snubberless series requires no derating of any of its parameters up to the maximum junction temperature, and, in fact, achieves a turn-off performance at 150 degrees C, which is three to four times better than normal. In addition, the TRIACs deliver high-noise immunity of up to 1500V/microsecond. Further cost savings are possible for manufacturers through the elimination of RC snubber circuits and noise filters.
The TRIACs are for use in universal motor-control applications, such as vacuum cleaners, washing-machine drum motors, and industrial drives; in hot environments such as cookers, ovens, kitchen hobs and coffee machines; and for achieving higher power density on PCBs, for heater and high-power motor control. They can also replace conventional TRIACs in closed environments where the ambient temperature is too high. The HiTj TRIAC series is produced in TO-220AB, TO-220AB insulated (ceramic), and in D2PAK surface-mount packages, for maximum versatility. They are all 600V devices, with current ratings of 8A, 10A, 12A, 16A and 20A. The sensitivity range offered today is 35mA to 50mA, and will soon be extended with 10mA devices. The devices are available now in volume production, priced from $0.50 to $1.00 in 1000-unit quantities.