Coordinating use of power-saving battery switch hardware feature by multiple firmware features

A method comprising:

• receiving, by power domain firmware executing on processing circuitry and from at least two of a plurality of firmware modules executing on processing circuitry and configured to determine whether power is needed for a respective corresponding hardware component or to perform a respective function of an implantable neurostimulator during a respective time period and to generate and transmit one or more respective requests based on the determination of whether power is needed for the corresponding hardware component or to perform the respective function during the respective time period, the one or more respective requests;
• determining, by the power domain firmware, whether to open a battery switch in response to the one or more respective requests;
• and
• controlling, by the power domain firmware, the battery switch to open in response to the determination.

A non-transitory computer-readable storage medium comprising instructions including a plurality of firmware modules and power domain firmware, which when executed, cause processing circuitry of an implantable neurostimulator to:

• perform respective functions of the implantable neurostimulator;
• determine whether power is needed for a corresponding hardware component or to perform the respective function during a respective time period;
• generate and transmit one or more respective requests based on the determination of whether power is needed for the corresponding hardware component or to perform the respective function during the respective time period;
• receive the one or more respective requests;
• determine whether to open a battery switch in response to the one or more respective requests;
• and
• control the battery switch to open in response to the determination.