Low power crypto embedded controller features ARM Cortex-M4 embedded microcontroller

Microchip CEC1302 low power crypto embedded controller features a 32-bit ARM Cortex-M4 embedded microcontroller with 128KB of SRAM and 32KB of Boot ROM. The device has an I2C bus to communicate with a system host. Two SPI memory interfaces allow the EC to read its code from external SPI flash memory: private SPI and/or shared SPI. The Shared SPI interface allows for EC code to be stored in a shared SPI chip. The private SPI memory interface provides for a dedicated SPI flash that is only accessible by the EC. The device is directly powered by two separate suspend supply planes (VBAT and VCC1) and senses the runtime power plane (VCC) to provide “Instant On” and system power management functions. It also contains an integrated VCC1 reset interface and a system power management interface that supports low-power states and can drive state changes as a result of hard-ware wake events.