Motorola MPC823e - Requirements for Accessing the Memory Management Unit Control Registers

Memory Management Unit
11-52 MPC823e REFERENCE MANUAL MOTOROLA
MEMORY MANAGEMENT
11
UNIT
11.9 REQUIREMENTS FOR ACCESSING THE MEMORY MANAGEMENT
UNIT CONTROL REGISTERS
All instruction and data memory management unit control registers must be accessed when
instruction and data address translation is turned off. Prior to an mtspr MD_DBCAM receive
instruction, an eieio instruction must be placed and executed before you write to the
Mx_CAM register.