ATSAM3U-EK Atmel, ATSAM3U-EK Datasheet - Page 59

• 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

13.3.3
6430D–ATARM–25-Mar-11
Core registers
The processor core registers are:
Table 13-2.
Program Counter
Name
R0-R12
MSP
PSP
LR
PC
PSR
ASPR
IPSR
EPSR
PRIMASK
Low registers
High registers
Stack Pointer
Link Register
Core register set summary
Type
RW
RW
RW
RW
RW
RW
RW
RO
RO
RW
(1)
FAULTMASK
CONTROL
PRIMASK
BASEPRI
SP (R13)
LR (R14)
PC (R15)
PSR
R10
R11
R12
Required
privilege
Either
Privileged
Either
Either
Either
Privileged
Either
Privileged
Privileged
Privileged
R0
R1
R2
R3
R4
R5
R6
R7
R8
R9
(2)
Reset
value
Unknown
See
description
Unknown
0xFFFFFFFF
See
description
0x01000000
0x00000000
0x00000000
0x01000000
0x00000000
General-purpose registers
Program status register
Exception mask registers
CONTROL register
PSP
‡
Description
“General-purpose registers” on page 60
“Stack Pointer” on page 60
“Stack Pointer” on page 60
“Link Register” on page 60
“Program Counter” on page 60
“Program Status Register” on page 61
“Application Program Status Register” on
page 62
“Interrupt Program Status Register” on page
63
“Execution Program Status Register” on page
64
“Priority Mask Register” on page 65
MSP
‡
Special registers
‡
Banked version of SP
SAM3U Series
59