ATxmega128D4-AU ATMEL [ATMEL Corporation], ATxmega128D4-AU Datasheet - Page 32

• Manufacturer Part Number: ATxmega128D4-AU
• Description: 8/16-bit Atmel XMEGA D4 Microcontroller
• Manufacturer: ATMEL [ATMEL Corporation]

14.3.4
14.3.5
8135L–AVR–06/12
Bus-keeper
Others
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.
Figure 14-5. Output configuration - Wired-OR with optional pull-down.
Figure 14-6. I/O configuration - Wired-AND with optional pull-up.
OUTn
OUTn
OUTn
DIRn
INn
INn
INn
Pn
Pn
Pn
XMEGA D4
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