Non-volatile memory robust start-up using analog-to-digital converter

摘要

In accordance with at least one embodiment, an onboard analog-to-digital converter (ADC) on a system-on-a-chip (SOC) is utilized to determine whether a charge pump output for a non-volatile memory (NVM) is correct or not. The SOC is directed to wait until the output is within an expected range before moving to the next step in a start-up procedure. If the maximum allowed start-up time is exceeded, an error signal is sent to the SOC such that the application can react to it.

主权项

1. A method comprising:
starting a charge pump for a non-volatile memory (NVM); monitoring a voltage at an output of the charge pump with an analog-to-digital converter; reading configuration information from the NVM in response to detecting with the analog-to-digital converter the voltage at the output to be within a predefined range; configuring the NVM for operation based on the configuration information read from the NVM; and enabling the NVM to be accessed in response to the configuring the NVM for operation.