Text-based stimulus: A diagnostic table titled 'Motor driver signals'. Columns: measurement point, observed value, note. Rows: D6 PWM input, pulses present, control signal from microcontroller; driver VCC logic, 3.3 V, logic supply present; driver VM motor supply, 0 V, motor power missing; motor output, no motion, load not powered. It also includes a small motor-driver block icon beside the table. Use the text-based stimulus. The microcontroller sends PWM pulses on D6, the driver logic pin has 3.3 V, but the driver VM motor-supply pin reads 0 V. Which component-function match is correct?