mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 54

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

Introduction
1.2 ARCHITECTURE
The MPC823 microprocessor uses a dual-processor architecture design approach to
provide high performance using a general-purpose RISC integer processor and a special-
purpose 32-bit scalar RISC communication processor module. The peripherals are uniquely
designed for communication requirements and can provide embedded signal processing
functions for communication and user interface enhancements and the I/O support needed
for high-speed digital communications. The MPC823 is comprised of four main modules that
interface with the 32-bit internal bus:
The MPC823 block diagram is illustrated in Figure 1-1.
• Development Capabilities and Interface
• IEEE 1149.1 Test Access Port (JTAG)
• 3.3V Operation with 5V TTL Compatibility for the JTAG and Communication Processor
• 256-Pin Plastic Ball Grid Array (BGA) Packaging
• The embedded PowerPC core
• The system interface unit
• The communication processor module
• LCD controller
Module Port Pins and 3.3V for All Others.
Program Flow Tracking
Watchpoints and Breakpoints
Simple Hardware Interface
Rich Control Register Set
— Instruction Show Cycle
— Data Show Cycle
— Branching
— Exception Traps
— Four Hardware Breakpoints
— Five Watchpoint Sources
— High-Speed Data Transfer
— Internal Status Pins
— Freeze Indication
MPC823 REFERENCE MANUAL