Microcontroller dual input boot assist control circuit

An automotive vehicle comprising:

• a traction battery;
• an electric machine configured to receive power from the traction battery;
• and
• a control module configured to monitor cells of the traction battery, and including a microcontroller and a boot assist control circuit, wherein the microcontroller includes an access port and is configured to permit reprogramming of functions of the microcontroller responsive to a voltage at the access port being greater than a first predefined threshold upon power-up or reset of the microcontroller, wherein the boot assist control circuit lacks logical elements and includes a pair of input ports, an output port directly electrically connected to the access port, and a plurality of capacitors, resistors, and transistors electrically connected between the pair and output port, and wherein the plurality is configured to (i) output a voltage to the output port at least equal to the first predefined threshold responsive to voltages at both the input ports being greater than a second predefined threshold and (ii) output a voltage to the output port less than the first predefined threshold responsive to the voltage at either one of the input ports being less than the second predefined threshold.