Atmel XMEGA A3 series User Manual

27
8068C–AVR–06/08
XMEGA A3
14.3.1 Push-pull
Figure 14-1. I/O configuration - Totem-pole
14.3.2 Pull-down
Figure 14-2. I/O configuration - Totem-pole with pull-down (on input)
14.3.3 Pull-up
Figure 14-3. I/O configuration - Totem-pole with pull-up (on input)
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’.
INn
OUTn
DIRn
Pn
INn
OUTn
DIRn
Pn
INn
OUTn
DIRn
Pn

Atmel XMEGA A3 series Specifications

General

Brand	Atmel
Model	XMEGA A3 series
Category	Microcontrollers
Language	English