For a description of the parity error scheme and parity error signals, refer to the Cortex*-A9 Technical Reference Manual, available on the ARM* website. ARM CORTEX A9 MPCORE TECHNICAL REFERENCE MANUAL ULENHBXHSZ ULENHBXHSZ | PDF | 95 Pages | ARM CORTEX A9. f For further information about Cortex-A9 MPCore configurable options, refer to the. Introduction chapter of the Cortex-A9 MPCore Technical Reference Manual, .

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Other brands and names mentioned herein may be the trademarks of their respective owners. However, you achieve this extended range at the expense of the FPGA peripheral address span.

Main Processor

The preload functionality is under software control. When the processor writes to any coherent memory location, the SCU ensures that the relevant data is coherent updated, cortex-9 or invalidated.

Related Information Implementation Details. The SCU performs the following functions:. To ensure that you are using the correct GIC interrupt number, your code should refer to the symbolic mpcoree name, as shown in the Interrupt Name column.

The continual requirement for mamual More information. Denotes text that you can enter at the keyboard, such as commands, file and program names, and source code. Typographical conventions Timing diagrams Signals on page viii.

ACP master read with coherent data in L2 cache: Application Note More information. Course responsible and examiner: However, the L2 cache can then proceed to load the cache line. Configuration inputs The integrator configures some features of the Cortex-A9 MPCore processor by tying inputs to specific values.

Title for Topic

cortxe-a9 To ensure mutually exclusive access to shared data, use the exclusive access support built into the SDRAM L3 interconnect scheduler.


See Configuration signals on page A Purpose Provides the end address for use with master port 1 in a two-master port configuration. Trend Micro Incorporated reserves the right to make changes to this document and to the products described herein without notice.

ARM publications This book contains information that is specific to this product. ARM Cortex Processors driving the pace of multicore innovation. The primary goal is to maximize overall memory performance and minimize power consumption.

See the following documents for other relevant information: Cristina Silvano Politecnico di Milano Outline Key issues to design multiprocessors Interconnection network Centralized shared-memory architectures Distributed More information. If the tag look-up misses, the confirmed linefill is sent to the L2C and gets RDATA earlier because the data request was already initiated by the speculative request. The FPU also converts between floating-point data formats and integers, including special operations to round towards zero required by high-level languages.

Main Processor – Vita Development Wiki

Other burst configurations have significantly lower performance. Programming This is the last process. Depending on the previous state of the data, the L1 or L2 cache may request the data from the L3 system interconnect. See Infocenter, for access to ARM documentation.

Writing to these bits has no effect if the Cortex-A9 MPCore processor has fewer than four processors. For a cache miss during a write access, the invalidation is considered as complete and the ACP request is sent to L2 memory. In addition, if an allocator runs out of sequence IDs, the ACP stalls requests until the reception of responses makes new sequence IDs available.


This prevents any more changes to the SCU configuration after booting.

This might include integrating RAMs into the design. Each timer is private, meaning that only its associated processor cortec-a9 access it. The default value is b00 when CPU2 processor is present, else b11 [ See Configurable options on page Also used for terms in descriptive lists, where appropriate. Configurations Available in all Cortex-A9 multiprocessor configurations. The interactive debugging features can be controlled by external JTAG tools rfeerence by processor-based monitor code.

This register is writable if the relevant bits in the SAC are set. CopyrightARM. Includes support for floating-point operations. Configurations Available in all two-master product configurations. All other products or services mentioned.

Denotes arguments to monospace text where the argument is to be replaced by a specific value.

The ACP gets data directly from the L1 cache and the read is interleaved with a processor access to the L1 cache. If the address and burst size of the transaction to the ACP matches either of the conditions shown in the table “Recommended Burst Types for Optimized Bursts”, the logic in the MPU assumes dortex-a9 transaction has all its byte strobes set.

The preload engine PLE is a hardware block that enables the L2 cache to preload selected regions of memory. Reads are observed on the L2 only if they miss in the L1 cache. A shared access occurs when two masters access the same memory space.