PPC603EFACT/D
REV. 7
Fact Sheet
MOTOROLA POWERPC 603e™
MICROPROCESSOR
The Motorola PowerPC 603e microprocessor (MPC603e) is a low-power implementation of the PowerPC
Reduced Instruction Set Computer (RISC) architecture. The PowerPC 603e microprocessor offers workstationlevel performance packed into a low-power, low-cost design ideal for desktop computers, notebooks and battery-powered systems, as well as printer and imaging equipment, telecommunications systems, networking and
communications infrastructure, industrial controls, and home entertainment and educational devices.
Industrial-grade, extended temperature PowerPC 603e microprocessors are available for harsh operating
environments. The PowerPC 603e microprocessor is software- and bus-compatible with the PowerPC 740™,
PowerPC 750™, and MPC7400 microprocessor families.
Motorola PowerPC
603e Microprocessor
Superscalar Microprocessor
The PowerPC 603e microprocessor is a superscalar design
capable of issuing three instructions per clock cycle into five
independent execution units, including:
I
I
I
I
I
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
for PowerPC 603e systems.
Product Highlights
The PowerPC 603e microprocessor features a low-power
2.5-volt or 3.3-volt design with three power-saving
modes—doze, nap and sleep. These user-programmable
modes progressively reduce the power drawn by the
processor. The PowerPC 603e microprocessor also uses
dynamic power management to selectively activate functional units as they are needed by the executing instructions. Unused functional units enter a low-power state
automatically without affecting performance, software
execution, or external hardware.
PowerPC 603e Microprocessor
Block Diagram
System Register
Unit
Integer
Unit
Branch Processing
Unit
Load/Store
Unit
Instruction
Unit
Floating Point
Unit
MMU
MMU
Data Cache
Inst. Cache
Bus Interface Unit
32b
Address
32b/64b
Data
System Bus
