Datasheet

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XMEGA C3 [DATASHEET]
8492F–AVR–07/2013
14.3.4 Bus-keeper
The bus-keeper’s weak output produces the same logical level as the last output level. It acts as a pull-up if the last level
was ‘1’, and pull-down if the last level was ‘0’.
Figure 14-4. I/O configuration - Totem-pole with bus-keeper.
14.3.5 Others
Figure 14-5. Output configuration - Wired-OR with optional pull-down.
Figure 14-6. I/O configuration - Wired-AND with optional pull-up.
INn
OUTn
DIRn
Pn
INn
OUTn
Pn
INn
OUTn
Pn