BajaPPC-750 User's Manual - Emerson Network Power

0002M621-15
3
Central Processing Unit
This chapter is an overview of the processor logic on the BajaPPC-750. It includes
information on the CPU, exception handling, and cache memory. The BajaPPC-
750 utilizes the IBM PPC750 PowerPC microprocessor, running at an internal
clock speed of 366 MHz or higher.
The following table outlines some of the key features for the PPC750 CPU:
Table 3-1. BajaPPC-750 CPU Features
Category PPC750 Key Features
Instruction Set 32-bit
CPU Speed (internal) 366 MHz (and faster)
Data Bus 32/64-bit modes
Address Bus 32-bit
Instructions per Clock 3, (2 + Branch)
Cache(s) 32K Instruction, 32K Data
Execution Units 2 Integer, Float, Branch, Load/Store, System
Voltages internal, 1.9 V or 2.5 V; input/output, 3.3 V
Other general features for the PowerPC family of microprocessors include:
Superscalar microprocessor
Independent execution units and multiple register files
Independent, 8-way, set-associative, instruction and data caches
Low power design
JTAG/COP test interface