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38 RS/6000 43P 7043 Models 150 and 260 Handbook
Figure 11. PowerPC 604e Microprocessor Logical Block Diagram
A 604e is defined by the following specifications:
• PowerPC 604e microprocessor running at:
– 375 MHz on RS/6000 Model 150
• Superscalar design with integrated integer, floating-point, and branch units
Instruction MMU/Cache Unit
Decode/Dispatch & Completion
Units
Fetch Unit
Branch Unit
Dispatch/Completion Buses
Integer
Unit
Floating
Point Unit
Load/Store
Unit
Floating Point
Register File
Rename Buffer
General Purpose
Register File
Rename Buffer
Memory Queues Data MMU/Cache
COP/JTAG Bus Interface Unit
JTAG Bus Address Bus Data Bus