Datasheet

157

ATmega16U4/32U4 [DATASHEET]

Atmel-7766J-USB-ATmega16U4/32U4-Datasheet_04/2016

Figure 15-15. PWM6 Mode, Single-slope Operation, Timing Diagram

The general I/O port function is overridden by the Output Compare value (OC4x / OC4x) from the Dead Time

Generator if either of the COM4x1:0 bits are set. The Output Compare pins can also be overridden by the

Output Compare Override Enable bits OC4OE5..OC4OE0. If an Override Enable bit is cleared, the actual value

from the port register will be visible on the port pin and, if the Override Enable bit is set, the Output Compare pin

is allowed to be connected on the port pin. The Output Compare Pin configurations are described in the table.

Table 15-4. Output Compare Pin configurations in PWM6 Mode

COM4A1 COM4A0 OC4A Pin (PC6) OC4A Pin (PC7)

0 0 Disconnected Disconnected

0 1 OC4A • OC4OE0 OC4A • OC4OE1

1 0 OC4A • OC4OE0 OC4A • OC4OE1

1 1 OC4A • OC4OE0 OC4A • OC4OE1

COM4B1 COM4B0 OC4B Pin (PB5) OC4B Pin (PB6)

0 0 Disconnected Disconnected

0 1 OC4A • OC4OE2 OC4A • OC4OE3

1 0 OC4A • OC4OE2 OC4A • OC4OE3

1 1 OC4A • OC4OE2 OC4A • OC4OE3

COM4D1 COM4D0 OC4D Pin (PD6) OC4D Pin (PD7)

TCNT4

OC4A Pin

OC4B Pin

OC4D Pin

OC4OE0

OC4OE1

OC4OE2

OC4OE3

OC4OE4

OC4OE5

OCW4A