MPC555CME Freescale Semiconductor, MPC555CME Datasheet - Page 150

• Manufacturer Part Number: MPC555CME
• Description: KIT EVALUATION FOR MPC555
• Manufacturer: Freescale Semiconductor
• Type: Microcontrollerr

Specifications of MPC555CME

• Contents: Module Board, Installation Guide, Power Supply, Cable, Software and more
• Processor To Be Evaluated: MPC555
• Data Bus Width: 32 bit
• Interface Type: RS-232
• For Use With/related Products: MPC555
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant

3.10 Instruction Set
MPC555
USER’S MANUAL
All PowerPC instructions are encoded as single words (32 bits). Instruction formats are
consistent among all instruction types, permitting efficient decoding to occur in parallel
with operand accesses. This fixed instruction length and consistent format greatly sim-
plifies instruction pipelining.
The PowerPC instructions are divided into the following categories:
Note that this grouping of the instructions does not indicate which execution unit exe-
cutes a particular instruction or group of instructions.
Integer instructions operate on byte, half-word, and word operands. Floating-point in-
structions operate on single-precision (one word) and double-precision (one double
word) floating-point operands. The PowerPC architecture uses instructions that are
four bytes long and word-aligned. It provides for byte, half-word, and word operand
loads and stores between memory and a set of 32 GPRs.
• Integer instructions include computational and logical instructions.
• Floating-point instructions include floating-point computational instructions, as
• Load/store instructions include integer and floating-point load and store instruc-
• Flow control instructions include branching instructions, condition register logical
• Processor control instructions are used for synchronizing memory accesses.
/
well as instructions that affect the floating-point status and control register (FP-
SCR).
tions.
instructions, trap instructions, and other instructions that affect the instruction
flow.
— Integer arithmetic instructions
— Integer compare instructions
— Integer logical instructions
— Integer rotate and shift instructions
— Floating-point arithmetic instructions
— Floating-point multiply/add instructions
— Floating-point rounding and conversion instructions
— Floating-point compare instructions
— Floating-point status and control instructions
— Integer load and store instructions
— Integer load and store multiple instructions
— Floating-point load and store
— Primitives used to construct atomic memory operations (lwarx and stwcx. in-
— Branch and trap instructions
— Condition register logical instructions
— Move to/from SPR instructions
— Move to/from MSR
— Synchronize
— Instruction synchronize
MPC556
structions)
CENTRAL PROCESSING UNIT
Rev. 15 October 2000
MOTOROLA
3-28