mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 131

• Manufacturer Part Number: mpc823rg
• Description: Mpc823 Powerquicc Integrated Communications Processor For Portable Systems
• Manufacturer: Freescale Semiconductor, Inc

SECTION 6
THE P
The MPC823 core is where the PowerPC
functionality of the PowerPC branch processor and fixed-point processor and includes all
the PowerPC user mode (problem mode) instructions, except floating-point instructions,
relevant privileged instructions, and all the registers associated with the processors and
instructions. In addition, it contains part of the development support features of the MPC823,
including breakpoint and watchpoint support, program flow tracking data generation, and
debug mode operation in which the core is controlled by the development support system
through the debug port module.
This section describes the functional specifications of the core. It is based on a document
called the PowerPC Microprocessor Family: The Programming Environment for 32-Bit
Microprocessors (MPCFPE32B/AD). Any reference to 64-bit implementation is not
supported by this core. Only a subset of the PowerPC architecture books are supported, as
indicated in Appendix B MPC823 Instruction Set.
6.1 FEATURES
The following is a list of the core’s main features:
• 32-bit PowerPC Architecture
• Single-Issue Integer Machine
• Variable Pipeline Depth Architecture Tailored to Instruction Complexity
• Fully Static Design
• Out-of-Order Execution Termination
• Branch Prediction for Prefetch
• 32
• Precise Exception Model
• Extensive Debug/Testing Support
32-Bit General-Purpose Register File
OWER
PC CORE
Freescale Semiconductor, Inc.
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™
architecture is implemented. It has the
6-1