32-bit MCUs support touchscreen LCD and USB OTG

The MCF5227x 32-bit ColdFire MCUs from Freescale Semiconductor introduce the added advantage of an on-chip touchscreen controller, to further extend the capabilities of the integrated LCD controller and connectivity peripherals of the established MCF532x family.

The MCF5227x shares the same LCD controller as the MCF532x MCUs, but with modifications to support single-screen monochrome and colour LCD panels up to a maximum resolution of 4096 x 4096 pixels. The touchscreen capability is implemented using an 8-channel, 12-bit ADC, which supports resistive 4-, 5-, 7-, and 8-wire interface touch-panels. An integrated reset controller enhances security for mission-critical applications.

The new family uses the ColdFire Version 2 CPU core, capable of 152 MIPS at 160MHz. Alongside this, an Enhanced Multiply-Accumulate (EMAC) unit enables fast DSP and multiply operations, and a hardware divide unit enhances numerous 32-bit arithmetic operations. Integrated memory comprises 8kbyte of on-chip cache and 128kbyte of dual-port SRAM. A 16-channel DMA controller is provided. In addition, a Cross-Bar Switch (XBS) enables concurrent access to peripherals or RAM from multiple bus masters. A Flexbus interface and DDR/SDR SDRAM controller provide support for external memories.

A USB 2.0 OTG interface with integrated transceiver supports industry-standard point-to-point connectivity up to 12Mbit/s. A FlexCAN (CAN 2.0B) interface is also integrated, as well as multiple serial interfaces including three UARTS, a DMA SPI (DSPI), and an I²C module. A Synchronous Serial Interface (SSI) provides audio codec support.

 

FEATURES 55 GPIOs 1.5V core with 1.8V/2.5V/3.3V bus I/O Four 32-bit timers with DMA support Low-power operating modes Peripheral power-management register

APPLICATIONS HVAC and lighting controllers Security panels Patient monitoring equipment Point-of-Sale (POS) terminals

 

 

 

The M52277EVB available to members of the Future Board Club. To apply for the development board, and membership of the Board Club, go to www.my-boardclub.com/manf-offers.htm This offer is free and subject to qualification.

 

Freescale Semiconductor / MCF5227x