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Integer unit
Load/Store unit
Floating-point unit
System register unit
Branch processing unit
The ability to execute multiple instructions in parallel, to pipeline
instructions, and the use of simple instructions with rapid
execution times yields maximum efficiency and throughput.
Product Highlights
The MPC603r microprocessor features a low-
power 2.5-volt or 3.3-volt design with three
power-saving modes鈥攄oze, nap and sleep. These
user-programmable modes progressively reduce the
power drawn by the processor. The microprocessor
also uses dynamic power management to selectively
activate functional units as they are needed by the exe-
cuting instructions. Unused functional units enter a
low-power state automatically without affecting per-
formance, software execution, or external hardware.
Motorola MPC603r Block Diagram
Branch Processing
Unit
Instruction
Unit
System Register
Unit
Integer
Unit
Load/Store
Unit
Floating Point
Unit
MMU
Inst. Cache
MMU
Data Cache
Bus Interface Unit
32b
Address
System Bus
32b/64b
Data
For More Information On This Product,
Go to: www.freescale.com
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