MSP430FR4133: External input signal to be used in Capture Mode

Part Number: MSP430FR4133

Hello,

In the document:

"MSP430FR4xx and MSP430FR2xx family, User's Guide. Literature Number: SLAU445I, October 2014–Revised March 2019"

there is a reference to an input signal CCIxA and CCIxB:

"13.2.4.1 Capture Mode

(...)

The input signal level can be read at any time through the CCI bit. Devices may have different signals
connected to CCIxA and CCIxB. See the device-specific data sheet for the connections of these signals."

Where are those signal connected in the device? (I could not find any reference in DataSheet)

I want to have an external signal measured using Capture Mode.

Thank you

Pedro A