PWM frequency change for pins PA3 and PA5

[ltwin8]

hello, i would like to use the Pins PA3 and PA5 for outputting PWM.

I would like to run at 1MHz to 8MHz internal clock (the lower the better, power saving) and i would like to output a squarewave on pin PA3 with roughly 50% dutycycle at a frequency of about 100kHz at PA3, i did play around with the TCB1.CTRLA setting it to 00 for the prescaler but it did not help, i looked up on datasheet p16 that its source is tcb1.

can i somehow set the resolution of the pwm to 1 bit? that way i could just toggle the pin right? can someone provide me with an example snippet?

additionally i would like to output a pwm of 8 bit resolution on PA5 at somewhere above 5kHz and below 30kHz, please if possible give me a code snippet here too, i will try to figure the rest out myself when i can work of a functioning code