Toshiba Launches ARM Cortex-M3 For In-Car Audio And Video Apps

Düsseldorf, Germany: Toshiba Electronics Europe has announced a family of ARM Cortex-M3 microcontrollers designed to support audio and visual connectivity and control in automotive applications (see the figure).

The TMPM321F10, TMPM322F10, TMPM323F10, and TMPM324F10 suit applications that require in-vehicle audio playback from music players and external USB devices and SD cards. In addition to supporting audio decoding, the TMPM327C3D can manage visual I/O applications such as the display of images from a vehicle’s rearview camera as it implements an analogue CVBS decoder.

These microcontrollers combine the ARM Cortex-M3 core with 1 Mbyte of NANO Flash memory, 64 kbytes of on-board RAM, a 10-bit analogue-to-digital converter, and timers. Integrated connectivity options include USB 2.0, synchronous serial bus interfaces, CAN functionality, a serial bus interface offering I2C operation, and general-purpose serial I/O (SIO).

The TMPM327C3D’s ARM Cortex-M3 core operates at frequencies up to 144 MHz and is available with 1.5 or 3 Mbytes of integrated eDRAM, allowing it to support respective display resolutions from typically WQVGA to WVGA without the need for external RAM. An additional 320 kbytes of SRAM is available for program and data storage.

An integrated graphics engine, video input, and digital RGB output further reduce external component count, while a special bus structure reduces CPU load during display and audio decoding. Built-in connectivity includes USB 2.0 High Speed Host Control, secure digital high-capacity (SDHC) control, a three-channel composite video broadcast signal (CVBS) decoder, and I2C and I2S interfaces.

The microcontrollers are supplied in 100-pin quad flat pack (QFP), 100-pin low-profile quad flat pack (LQFP), and 144-pin QFP formats depending on the specific device chosen. Operating voltage for each device is from 3.0 to 3.6 V.

Toshiba Electronics Europe

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