MC68030RC33C Freescale Semiconductor, MC68030RC33C Datasheet - Page 278

• Manufacturer Part Number: MC68030RC33C
• Description: IC MPU 32BIT ENHANCED 128-PGA
• Manufacturer: Freescale Semiconductor

Specifications of MC68030RC33C

• Processor Type: M680x0 32-Bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 128-PGA
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant
• Features: -

8.1.6 Privilege V i o l a t i o n Exception
MOTOROLA
to that for instruction traps. When the processor has identified an illegal or
tempting to execute the instruction. The processor copies the status register,
the handler.
enters the supervisor privilege level, and clears the trace bits, disabling fur-
ther tracing. The processor generates the vector number, either 4, 10, or 11,
according to the exception type. The illegal or unimplemented instruction
vector offset, current program counter, and copy of the status register are
saved on the supervisor stack, with the saved value of the program counter
execution resumes at the address contained in the exception vector. It is the
if the instruction is emulated in software or is to be skipped on return from
To provide system security, the following
An attempt to execute one of the privileged instructions while at the user
Exception processing for illegal and unimplemented instructions is similar
unimplemented instruction, it initiates exception processing instead of at-
being the address of the illegal or u nimplemented instruction, nstruction
responsibility of the handling routine to adjust the stacked program counter
privilege level causes a privilege violation exception. Also, a privilege vio-
lation exception occurs if a coprocessor requests a privilege check and the
processor is at the user level.
ANDI TO SR
EOR to SR
cpRESTORE
cpSAVE
ORI to SR
MOVE from SR
MOVE to SR
MOVE USP
MOVEC
MOVES
PFLUSH
PLOAD
PMOVE
PTEST
RESET
RTE
STOP
M068030 USER'S MANUAL
instructions are privileged:
8-11
8