Datasheet

1. When enabled, the two-wire Serial Interface enables Slew-Rate controls on the output pins PD0
and PD1. This is not shown in this table. In addition, spike filters are connected between the AIO
outputs shown in the port figure and the digital logic of the TWI module.
15.4. Register Description
Atmel ATmega644A [DATASHEET]
Atmel-42716C-ATmega644A_Datasheet_Complete-10/2016
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