Graphics processor draws 70μA/MHz in active mode

Article By : Toshiba

The TZ1201XBG graphics processor is based on a 32-bit ARM Cortex-M4F processor, capable of operating at 96MHz, according to Toshiba.

Toshiba Electronics has begun mass producing TZ1201XBG, the latest addition to its line-up of ApP LiteTM application processors for IoT devices.

The TZ1201XBG graphics processor is based on a 32-bit ARM Cortex-M4F processor, capable of operating at 96MHz (up to 120MHz with overdriving). Combining the ARM core with on-chip power management gives the TZ1201XBG a low power consumption of 70μA/MHz in active mode. With a 350mAh battery and an always-on display this enables around one month between charges in second watch applications and two months for minute watches.

With 2.2MB of embedded high-speed SRAM, an advanced LCD controller and 2D graphics accelerators, the TZ1201XBG provides a platform for alpha-blending, drawing, rotating, texturing and resizing images, as well as for on-the-fly colour conversion, according to Toshiba. The fully-featured processor offers integrated support for either an HVGA (480×320) display at 30fps or a QVGA display (320×240) at up to 60fps.

The graphics processor's analogue front-end (AFE) combines a 24-bit delta-sigma ADC, 12-bit ADC, 12-bit DAC and an LED DAC to support direct sensing, while 120 free GPIOs and integrated USB, UART, SPI, and I2C interfaces support the use of external sensors and peripherals to monitor activity and movement.

The integrated audio interfaces for voice command and voice trigger processing, according to Toshiba.