Integrated application processor targets wearable devices

April 01, 2014 // By Julien Happich
By integrating sensing, data processing and wireless transmission into a single package, Toshiba Electronics Europe’s TZ1001MBG application processor is aimed at wearable devices of all shapes and usages, including activity monitors, wrist-worn electronics or head-mounted computers.

The chip features an accelerometer to measure motion, a processor to handle the data acquired by the sensor, 8Mbit flash memory to store data, as well as RF circuitry and a Bluetooth Low Energy controller that supports low power communication.

A 48 MHz high performance ARM Cortex-M4F with DSP and floating point processing unit allows data fusion from multiple sensors, both internal and external, to improve sensor accuracy. The IC also integrates high resolution ADCs that can convert analogue signals from external sensors, such as pulse wave and electrocardiogram (ECG) devices, into digital data, and deliver it to the internal processor.

Transfer of raw and processed data to external equipment, such as smartphones and tablets is supported through the following I/O protocols USB, SPI, I2C, UART, 12bit ADC, 24bit Delta-Sigma ADC.