18.5 GTSUCOMP ineffective connection to TC1

The trigger/capture input B of TC1.TIOB1 is driven internally by the GTSUCOMP signal of the Ethernet MAC (GMAC), but the feature does not work.

Work Around

Routing the GTSUCOMP signal to one timer counter input can be done at PCB level. GTSUCOMP is multiplexed on the PB2 line, therefore PB2 can be externally looped back to one of the timer counter inputs, as shown in the following figure.

Affected Silicon Revisions