M28946 Datasheet | Mindspeed Technologies

features provided by the M28975 multi-mode transceiver including multi-pair operation and guaranteed interoperability with legacy systems including HDSL2, SDSL, and Mindspeed’s Auto Baud™ software. > K E Y F E AT U R E S > 2 independent full-rate PCM ports for simultaneous operation > Double the throughput per copper pair of other solutions > Reliable operation at 4640 Kbps up to 7,000 or 2KM > Multi-mode operation > Low-power consumption > Highly integrated solution > Embedded microprocessor > Interoperable with Zip Wire 2B1Q transceivers including Auto Baud Embedded Microprocessor The M28946 chipset includes an embedded microprocessor and a full suite of software that facilitates faster and simplified development of systems that ply with all applicable ITU, ANSI and ETSI standards. The embedded microprocessor and software handle the extended operations channel (EOC) processing and many Multimode Operation The M28946 DSL solution not only plies with the ITU G.shdsl standard, it also supports the optional enhanced performance asymmetrical PSD (EPAP) modes of operation. In addition, it plies with the ANSI HDSL2 standard (ANSI T1.418) and delivers interoperability with Mindspeed Technologies’™ market-leading Zip Wire transceivers through operation in 2B1Q multi-rate mode. The 2B1Q mode supports Auto Baud for SDSL interoperability, rate optimization and fast connect times, as well as standards-based HDSL operation. All of these modes are supported by a single hardware circuit (i.e., one transformer, crystal and hybrid for all modes) and can be configured in real-time via software control. other functions often delegated to an external host controller in peting solutions. This greatly reduces software-porting efforts and eliminates real-time processing requirements for an external host controller. Flexible Framer The M28946’s integrated framer includes fully featured UTOPIA Level 2 and PCM interfaces. The UTOPIA interface includes ATM TC-layer processing. The framer...