Speed setpoint with 16-bit resolution incl. sign bit.

Bit 15 determines the setpoint sign:

Bit = 0: positive setpoint

Bit = 1: negative setpoint

The speed setpoint is normalized via parameter p2000.

N_setp = 4000 hex or 16384 dec = speed in p2000

1. Does that mean any value less than 16384 is positive setpoint and value grater than 16384 is negative setpoint?

2. If we convert 16384 to bits, we have bit-14 as 1 and all the rest of the bits as 0. Since this is the normalized value and if we work it out with all 14-bits as 1, we ended up with 32767. With this, i am a bit confused:

0-16384 = positive setpoint (Bit-14 as 1 and all the rest as 0)
16385 - 32767 = Not valid Setpoint? (Bit-14 and any bit is 1)
32768 - 49152 = Negative setpoint (Bit-15 as 1 and any bits is 1)
49153 - 65535 = Not Valid Setpoint? (Bit-15, Bit -14, and any bit is 1)

3.Does normalized mean mid-point?

Thanks
ksyong17