Two different models for the stepper motor in Simscape stepper motor blocks

I found in Simscape two differnt blocks for the stpper motor

SM block 1

SM block 2

Before going to the question, In the stepper motor there is the number of rotor teeth (N_ R), and number of pole pairs (p). These two relates to each other as:

p=N_r/2.

As illustrated in Matlab documentation

https://www.mathworks.com/help/sps/powersys/ref/steppermotor.html

In SM block 1, and and in SM block 2, the electromagnetic torque (T_e), and the back electromotive force (e) are given in two different ways

SM block 1 https://www.mathworks.com/help/sps/ref/steppermotor.html

In T_e, R_m usally consdired inf and the term e/R_m is zero

SM block 1 https://www.mathworks.com/help/sps/powersys/ref/steppermotor.html

SM block 1 uses the number of rotor teeth (N_r), in the sin /cos terms, while SM block 1 uses the number of pole pairs (p), in the sin /cos terms

The Question: Since the frequency of sin /cos is different in the two models, How these models can be equivalent to each other?