17
32000D–04/2011
AVR32
SR- Status Register
The Status Register is mapped into the system register space. This allows it to be loaded into
the register file to be modified, or to be stored to memory. The Status Register is described in
EVBA - Exception Vector Base Address
This register contains a pointer to the exception routines. All exception routines start at this
address, or at a defined offset relative to the address. Special alignment requirements may
apply for EVBA, depending on the implementation of the interrupt controller. Exceptions are
ACBA - Application Call Base Address
Pointer to the start of a table of function pointers. Subroutines can thereby be called by the com-
pact acall instruction. This facilitates efficient reuse of code. Keeping this pointer as a register
facilitates multiple function pointer tables. ACBA is a full 32 bit register, but the lowest two bits
90
360
MPUPSR2
MPU Privilege Select Register region 2
OA
OB
91
364
MPUPSR3
OA
OB
92
368
MPUPSR4
MPU Privilege Select Register region 4
OA
OB
93
372
MPUPSR5
MPU Privilege Select Register region 5
OA
OB
94
376
MPUPSR6
MPU Privilege Select Register region 6
OA
OB
95
380
MPUPSR7
MPU Privilege Select Register region 7
OA
OB
96
384
MPUCRA
MPU Cacheable Register A
OA
OB
97
388
MPUCRB
MPU Cacheable Register B
OA
OB
98
392
MPUBRA
MPU Bufferable Register A
OA
OB
99
396
MPUBRB
MPU Bufferable Register B
OA
OB
100
400
MPUAPRA
MPU Access Permission Register A
OA
OB
101
404
MPUAPRB
MPU Access Permission Register B
OA
OB
102
408
MPUCR
MPU Control Register
OA
OB
103
412
SS_STATUS
Secure State Status Register
OA
OB
104
416
SS_ADRF
Secure State Address Flash Register
OA
OB
105
420
SS_ADRR
Secure State Address RAM Register
OA
OB
106
424
SS_ADR0
Secure State Address 0 Register
OA
OB
107
428
SS_ADR1
Secure State Address 1 Register
OA
OB
108
432
SS_SP_SYS
Secure State Stack Pointer System Register
OA
OB
109
436
SS_SP_APP
Secure State Stack Pointer Application Register
OA
OB
110
440
SS_RAR
Secure State Return Address Register
OA
OB
111
444
SS_RSR
Secure State Return Status Register
OA
OB
112-191
448-764
Reserved
Reserved for future use
-
192-255
768-1020
IMPL
IMPLEMENTATION DEFINED
-
Table 2-7.
System Registers (Continued)
Reg #
Address
Name
Function
Compliance