8 READ_POWER_STATE = 0x03,
9 READ_TRACK_CURRENT = 0x08,
10 SET_OVERCURRENT_LIMIT = 0x09,
11 READ_INPUT_VOLTAGE = 0x0A,
12 MOTOROLA_SPEED = 0x11,
13 MOTOROLA_REVERSE = 0x12,
14 MOTOROLA_SPEED_DIRECTION = 0x13,
15 MOTOROLA_SPEED_FUNCTION = 0x14,
16 MOTOROLA_SOLENOID = 0x15,
19 RECEIVE_OVERRUN = 0x81,
21 INVALID_COMMAND = 0x83,