Motorola MPC823e - Page 459

Communication Processor Module
MOTOROLA MPC823e REFERENCE MANUAL 16-5
RISC
COMMUNICATION
16
PROCESSOR MODULE
16.2.1 RISC Microcontroller Features
The following is a list of the RISC microcontroller’s main features.
• One System Clock Cycle Per Instruction
• Fixed-Length Instruction Object Code
• Code is Executed from Internal ROM or Dual-Port RAM
• Automatically Switches to Low-Power Mode when Idle
• 32-Bit Data Path
• Optimized for Communication Processing
• Digital Signal Processing Capability Using MAC Arithmetic and Special
Addressing Modes
• DMA Bursts Serial Data to External Memory
Figure 16-3. RISC Microcontroller Block Diagram
SEQUENCER
DECODER
ARITHMETIC
MULTIPLY
CYCLIC
REGISTER
FILE
PROCESSING
UNITS
DMA
DUAL-PORT RAM
SCHEDULER
INSTRUCTION
STORAGE
RAM
ROM
DEVELOPMENT
SUPPORT
SERVICE REQUESTS
PERIPHERAL
INTERFACE
PERIPHERAL
BUS
REDUNDANCY
CHECK
LOGIC
UNIT
AND
ACCUMULATE