ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 66

Manufacturer Part Number

KIT EVAL FOR AT91SAM3U CORTEX

Manufacturer

Processor To Be Evaluated

Data Bus Width

Interface Type

Operating Supply Voltage

Silicon Manufacturer

Core Architecture

Core Sub-architecture

Silicon Core Number

Silicon Family Name

Kit Contents

Board CD Docs

Rohs Compliant

For Use With/related Products

Lead Free Status / RoHS Status

Lead free / RoHS Compliant

Manufacturer

Part Number:

Manufacturer:

Priority mask bits:

0x0000 = no effect

Nonzero = defines the base priority for exception processing.

The processor does not process any exception with a priority value greater than or equal to BASEPRI.

This field is similar to the priority fields in the interrupt priority registers. The processor implements only bits[7:4] of this field,

bits[3:0] read as zero and ignore writes. See

that higher priority field values correspond to lower exception priorities.

SAM3U Series

Base Priority Mask Register

The BASEPRI register defines the minimum priority for exception processing. When BASEPRI is

set to a nonzero value, it prevents the activation of all exceptions with same or lower priority

level as the BASEPRI value. See the register summary in

butes. The bit assignments are:

“Interrupt Priority Registers” on page 174

Table 13-2 on page 59

for more information. Remember

6430D–ATARM–25-Mar-11

for its attri-