5

6483A–ATARM–04-Aug-09

ATSAM3U Errata

Use NCS1 available on PC12 (Peripheral A) or use a another chip select or drive the chip select

by software.

Problem Fix

This issue will be fixed in the next revision.

1.2.8

Backup Mode

1.2.8.1

Backup mode: VDDUTMI current consumption in Backup mode

In Backup mode, the current consumption measured on VDDUMTI can be around 500 µA

instead of less than 0.1 µA.

Workaround

Disable externally the voltage on VDDUTMI in Backup mode.

Problem Fix

This issue will be fixed in the next revision.

1.2.8.2

Backup mode: the PIO states are not kept

When entering in Backup mode with WFE command, the PIO states are not kept. All the PIOs

go into input with pull-up state in Backup mode.

Workaround

.Instead of using the WFE command to go into Backup mode, set the VROFF bit (SUPC_CR).

Problem Fix

This issue will be fixed in the next revision.

1.2.9

Wait Mode

1.2.9.1

Wait mode: VDDCORE current consumption

Some parts may show a higher current consumption than expected (50 µA instead of 5 µA) on

VDDCORE.

Workaround

None.

Problem Fix

This issue will be fixed in the next revision.