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MCU integrates SMSC MediaLB interface

Posted: 18 Mar 2008 ?? ?Print Version ?Bookmark and Share

Keywords:Media Local Bus? MediaLB interface? microcontroller?

Fujitsu Microelectronics Europe (FME) has started to implement SMCS's Media Local Bus (MediaLB) technology in the latest member of its 32bit MB91460 MCU product series, the MB91F467M that is designed to support high-performance automotive and industrial applications for fast data processing and distribution.

The MediaLB serial bus interface provides seamless connectivity to SMSC's Media Oriented Systems Transport (MOST) Intelligent Network Interface Controller (INIC) family. SMSC's MediaLB is an inter-chip communication technology that allows one or more applications to access the MOST network by connecting them to an INIC.

The MB91F467M is a member of Fujitsu's MB91460 range of controllers designed for automotive applications, including body control, dashboard and infotainment. The MB91F467M targets car audio applications and acts as a gateway between the MOST bus via its MediaLB interface, and up to ten I?S interfaces. In addition to data, MediaLB also provides a clock path with low jitter from the MOST backbone to or from those interfaces. The MediaLB function block allows 256fs and 512fs operation. It contains a buffer of 2,048bit x 32bit and offers support for 16 channels.

Based on Fujitsu's.18?m embedded flash technology and proprietary 32bit RISC MCU core, the MB91F467M is optimized for applications requiring 32bit performance at up to 80MHz and various communication interfaces. In addition to the MediaLB I?S gateway, it features two CAN controller interfaces with 32 and 64 message buffers, 9 LIN-USART modules for synchronous and asynchronous serial communication, including LIN support, and eight dedicated IC interfaces, which can act as master or slave modules. A variety of timers, a 10bit ADC with 12 channels and a 16bit external bus interface, complete the set of functions.

The on-chip memory includes 1,088kB of flash, 64Kbyte of RAM and an 8Kbyte cache. Debugging is supported by the on-chip debug support unit, which can be directly connected to Fujitsu's ICE system. The MB91F467M is housed in an LQFP-216 package.

First samples will be available in Q2 08.

- Ismini Scouras

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