Motorola MCF5281 Manual De Usuario
MOTOROLA
Chapter 30. Chip Configuration Module (CCM)
30-1
Chapter 30
Chip Configuration Module (CCM)
The chip configuration module (CCM) controls the chip configuration and mode of
operation for the MCF5282.
operation for the MCF5282.
30.1 Features
The CCM performs these operations.
• Selects the chip operating mode:
— Master mode
— Single-chip mode
— Single-chip mode
• Selects external clock or phase-lock loop (PLL) mode with internal or external
reference
• Selects output pad drive strength
• Selects boot device and data port size
• Selects bus monitor configuration
• Selects low-power configuration
• Selects transfer size function of the external bus
• Selects processor status (PSTAT) and processor debug data (DDATA) functions
• Selects BDM or JTAG mode
• Selects boot device and data port size
• Selects bus monitor configuration
• Selects low-power configuration
• Selects transfer size function of the external bus
• Selects processor status (PSTAT) and processor debug data (DDATA) functions
• Selects BDM or JTAG mode
30.2 Modes of Operation
The CCM configures the chip for two modes of operation:
• Master mode
• Single-chip mode
• Single-chip mode
The operating mode is determined at reset and cannot be changed thereafter.