Hi, John,
I think it is okay to use 100 pin or 80 pins MC56F83xxx to output independent PWM signals.
As you know that the MC56F83xxx has two eFlexPWM modules: eFlexPWMA and eFlexPWMB, each eFlexPWM module has 4 sub-module. Each PWM sub-module can output two PWM signals:PWM_xA, PWM_xB, the two PWM signals PWM_xA, PWM_xB have the same frequency.
So the eFlexPWMA can output 8 PWM signals:PWMA_0A/0B,PWMA_1A/1B,PWMA_2A/2B,PWMA_3A/3B.
The eFlexPWMB can output 8 PWM signals:PWMB_0A/0B,PWMB_1A/1B,PWMB_2A/2B,PWMB_3A/3B.
They can output 16 PWM signals totally.
Pls refer to section 10.1 MC56F83xxx Signal Multiplexing and Pin Assignments in data sheet of MC56F83xxx.
I have checked that for 80 pin package, all 8 PWM signals for PWMA module can output from pins.
Pin index(80 LQFP) PWM signals
55 PWMA_0B
56 PWMA_0A
57 PWMB_0B
58 PWMB_0A
59 PWMA_1B
60 PWMA_1A
63 PWMB_1B
64 PWMB_1A
65 PWMA_2B
66 PWMA_2A
67 PWMA_3B
68 PWMA_3A
The PWMB_2A/2B, PWMB_3A/3B can not output to pad directly, but you can output them from crossbar.
As the following crossbar fig, you can output the PWM signals from the crossbar package pins:
You can set up the PWM Output Trigger Control Register to have the trigger signal to output PWM signal.
Pls refer to section 27.3.22 Output Trigger Control Register (SM0TCTRL - SM3T
CTRL)
Hope it can help you
BR
XiangJun Rong
