Atmel ARM-Based Evaluation Kit for SAM4S16C, 32-Bit ARM® Cortex® Microcontroller ATSAM4S-WPIR-RD ATSAM4S-WPIR-RD Data Sheet
Product codes
ATSAM4S-WPIR-RD
57
SAM4S Series [DATASHEET]
Atmel-11100G-ATARM-SAM4S-Datasheet_27-May-14
Note:
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12.4.1.3 Core Registers
Figure 12-2.
Processor Core Registers
SP (R13)
LR (R14)
PC (R15)
R5
R6
R7
R0
R1
R3
R4
R2
R10
R11
R12
R8
R9
Low registers
High registers
MSP
‡
PSP
‡
PSR
PRIMASK
FAULTMASK
BASEPRI
CONTROL
General-purpose registers
Stack Pointer
Link Register
Program Counter
Program status register
Exception mask registers
CONTROL register
Special registers
‡
Banked version of SP
Table 12-2.
Core Processor Registers
Register
Name
Access
Required
Privilege
Privilege
Reset
General-purpose registers
R0–R12
Read/Write
Either
Unknown
Stack Pointer
MSP
Read/Write
Privileged
See description
Stack Pointer
PSP
Read/Write
Either
Unknown
Link Register
LR
Read/Write
Either
0xFFFFFFFF
Program Counter
PC
Read/Write
Either
See description
Program Status Register
PSR
Read/Write
Privileged
0x01000000
Application Program Status Register
APSR
Read/Write
Either
0x00000000
Interrupt Program Status Register
IPSR
Read-only
Privileged
0x00000000
Execution Program Status Register
EPSR
Read-only
Privileged
0x01000000
Priority Mask Register
PRIMASK
Read/Write
Privileged
0x00000000