mpc823rg Freescale Semiconductor, Inc, mpc823rg Datasheet - Page 190

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

Instruction Cache
• Supports Cache Inhibit
• Efficiently Uses the Pipeline of the Internal Bus by Initiating a New Burst Cycle (if a Miss
• Performance Enhanced for Cache-Inhibited Regions by Fetching a Full Line to the
• Instruction Unit Request has Priority Over a Burst Buffer Write to an Array (Burst Buffer
• Miss Latency is Reduced by Sending Addresses to the Cache and Internal Bus
• Minimum Operational Power Consumption
• Tags and Data Arrays can be Accessed by the Core for Debugging and Testing
• Special Support is Available when the MPC823 Processor is in Debug Mode. Refer to
is Detected) while Bringing the Tail of the Previously Missed Line to the Cache.
Internal Burst Buffer. Instructions Stored in the Burst Buffer and Those Originated in a
Cache-Inhibited Region are Only Used Once before Being Refetched.
Holds Last Missed Data), thus Increasing the Overall Core Performance
Simultaneously and Aborting when a Hit before a Cycle Goes External
Purposes
Section 9.9 Debug Support for More Information.
As a cache mode of operation (cache disable)
On memory regions (supported by the memory management unit)
Freescale Semiconductor, Inc.
For More Information On This Product,
MPC823 REFERENCE MANUAL
Go to: www.freescale.com
MOTOROLA