Electronic Design

Low-Power ARM9 Controller Supports MMI Apps

Düsseldorf, Germany: According to Toshiba Electronics Europe, the latest addition to its family of scalable, low-power ARM-based microcontrollers allows designers to easily add man-machine interface (MMI) functionality to embedded designs.

The TMPA912CMAXBG, based on the 32-bit ARM926EJ-S core, suits embedded systems that require integrated display control and graphic processing capabilities, but don’t need all of the performance, memory, and functionality offered by previous models in the Toshiba ARM9 family. Full pin and software compatibility with other family members protects investment by supporting upgrades to higher-end devices as necessary with minimum system redesign.

In addition to the low-power, 32-bit ARM926EJ-S core running at 200MHz (0°C to +70°C) and 150MHz (-20°C to +85°C), the new MCU offers 32kbytes of embedded RAM for program, data, and display memory. A memory controller supports SDR and DDR SDRAM, and up to 2.5Gbytes of linear access space can be addressed.

Integrated features in MMI designs include a built-in LCD controller, a touchscreen interface, a CMOS camera interface, and an LCD data processor accelerator (LCDA). The LCD controller suits TFT and STN display sizes up to 1024 x 768 pixels. The LCDA supports resolutions to WVGA (800x480) and delivers image scaling, filtering, and blending functions.

Connectivity options include SPI, UART, I2C, I2S, and a high-speed USB device (480Mbps). Additional built-in peripherals include a 10-bit ADC; a six-channel, 16-bit timer; a watchdog timer; real-time clock; and alarm functionality.

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