Datasheet

32XMEGA E5 [DATASHEET]
Atmel-8153H–AVR-ATxmega8E5-ATxmega16E5-ATxmega32E5_Datasheet–07/2014
16.3.4 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 16-4. I/O configuration - Totem-pole with bus-keeper.
16.3.5 Others
Figure 16-5. Output configuration - Wired-OR with optional pull-down.
Figure 16-6. I/O configuration - Wired-AND with optional pull-up.
INxn
OUTxn
DIRxn
Pxn
INxn
OUTxn
Pxn
INxn
OUTxn
Pxn