ATXMEGA32D4-CU View Datasheet(PDF) - Atmel Corporation

Part Name

Description

Manufacturer

ATXMEGA32D4-CU

8/16-bit Atmel XMEGA D4 Microcontroller

Atmel Corporation 

XMEGA D4

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

DIRn

OUTn

Pn

INn

Figure 14-5. Output configuration - Wired-OR with optional pull-down.

OUTn

Pn

INn

Figure 14-6. I/O configuration - Wired-AND with optional pull-up.

INn

Pn

OUTn

32

8135L–AVR–06/12

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