Central Processing Unit
MPC561/MPC563 Reference Manual, Rev. 1.2
Freescale Semiconductor
3-59
for data-protection-error exception register settings.
When a data protection error exception is taken, instruction execution resumes at offset 0x1400 from the
base address indicated by MSR[IP].
3.15.4.16 Implementation-Dependent Debug Exceptions
Implementation-dependent debug exceptions occur in the following cases:
•
When there is an internal breakpoint match (for more details, refer to
•
When a peripheral breakpoint request is asserted to the RCPU.
•
When the development port request is asserted to the RCPU. Refer to
,” for details on how to generate the development port-interrupt request.
for debug-exception register settings.
Table 3-36. Register Settings Following a Data Protection Error Exception
Register Name
Bits
Description
Save/Restore Register 0 (SRR0)
1
1
If the exception occurs during a data access in Decompression On mode, the SRR0 register will contain the address
of the Load/Store instruction in compressed format.
All
Set to the effective address of the instruction that caused the
exception
Save/Restore Register 1 (SRR1)
0:15
Cleared to 0
Other
Loaded from bits [16:31] of MSR. In the current
implementation, bit 30 of the SRR1 is never cleared, except by
loading a zero value from MSR[RI]
Machine State Register (MSR)
IP
No change
ME
No change
LE
Bit is copied from ILE
DCMPEN
This bit is set according to (BBCMCR[EN_COMP] AND
BBCMCR[EXC_COMP])
Other
Cleared to 0
Data/Storage Interrupt Status
Register (DSISR)
0:3
Cleared to 0
4
Set to 1 if the storage access is not permitted by the protection
mechanism. Otherwise cleared to 0
5
Cleared to 0
6
Set to 1 for a store operation and cleared to 0 for a load
operation
7:31
Cleared to 0
Data Address Register (DAR)
All
Set to the effective address of the data access that caused the
exception
Summary of Contents for MPC561
Page 84: ...MPC561 MPC563 Reference Manual Rev 1 2 lxxxiv Freescale Semiconductor...
Page 144: ...Signal Descriptions MPC561 MPC563 Reference Manual Rev 1 2 2 46 Freescale Semiconductor...
Page 206: ...Central Processing Unit MPC561 MPC563 Reference Manual Rev 1 2 3 62 Freescale Semiconductor...
Page 302: ...Reset MPC561 MPC563 Reference Manual Rev 1 2 7 14 Freescale Semiconductor...
Page 854: ...Time Processor Unit 3 MPC561 MPC563 Reference Manual Rev 1 2 19 24 Freescale Semiconductor...
Page 968: ...Development Support MPC561 MPC563 Reference Manual Rev 1 2 23 54 Freescale Semiconductor...
Page 1144: ...Internal Memory Map MPC561 MPC563 Reference Manual Rev 1 2 B 34 Freescale Semiconductor...
Page 1212: ...TPU3 ROM Functions MPC561 MPC563 Reference Manual Rev 1 2 D 60 Freescale Semiconductor...
Page 1216: ...Memory Access Timing MPC561 MPC563 Reference Manual Rev 1 2 E 4 Freescale Semiconductor...