ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 192

• Manufacturer Part Number: ATSAM3U-EK
• Description: KIT EVAL FOR AT91SAM3U CORTEX
• Manufacturer: Atmel
• Type: MCUr

Specifications of ATSAM3U-EK

• Contents: Board
• Processor To Be Evaluated: SAM3U
• Data Bus Width: 32 bit
• Interface Type: RS-232, USB
• Operating Supply Voltage: 3 V
• Silicon Manufacturer: Atmel
• Core Architecture: ARM
• Core Sub-architecture: Cortex - M3
• Silicon Core Number: SAM3U4E
• Silicon Family Name: SAM3U
• Kit Contents: Board CD Docs
• Rohs Compliant: Yes
• For Use With/related Products: AT91SAM3U
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

13.20.9
192
SAM3U Series
System Handler Priority Registers
The SHPR1-SHPR3 registers set the priority level, 0 to 15 of the exception handlers that have
configurable priority.
SHPR1-SHPR3 are byte accessible. See the register summary in
their attributes.
The system fault handlers and the priority field and register for each handler are:
Table 13-32. System fault handler priority fields
Each PRI_N field is 8 bits wide, but the processor implements only bits[7:4] of each field, and
bits[3:0] read as zero and ignore writes.
Handler
Memory management
fault
Bus fault
Usage fault
SVCall
PendSV
SysTick
Field
PRI_4
PRI_5
PRI_6
PRI_11
PRI_14
PRI_15
“System Handler Priority Register 1” on page 193
“System Handler Priority Register 2” on page 194
“System Handler Priority Register 3” on page 194
Register description
Table 13-30 on page 180
6430D–ATARM–25-Mar-11
for