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TMS320F280039C: ECAP apwm mode question

Part Number: TMS320F280039C

1. In the diagram 21-1 note A, you said “A single pin is shared between CAP and APWM functions. In capture mode, it is an input; in APWM mode, it is an output.”

----Which pin is shared between CAP and APWM function?

2.In table 32-3,ECAPOUT_EN is CLB output. Base on the description of 32.3.4, ECAPOUT_EN canbe replaced by CLB output.

----What is ECAPOUT_EN used for? Tristate which pin? 

----ECAP_OUT can only output through XBAR?