AT91SAM9G45-CU View Datasheet(PDF) - Atmel Corporation
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'AT91SAM9G45-CU' PDF : 55 Pages View PDF
9. ARM926EJ-S Processor Overview
9.1 Description
The ARM926EJ-S™ processor is a member of the ARM9™ family of general-purpose microprocessors. The
ARM926EJ-S implements ARM architecture version 5TEJ and is targeted at multi-tasking applications where full
memory management, high performance, low die size and low power are all important features.
The ARM926EJ-S processor supports the 32-bit ARM and 16-bit THUMB instruction sets, enabling the user to
trade off between high performance and high code density. It also supports 8-bit Java instruction set and includes
features for efficient execution of Java bytecode, providing a Java performance similar to a JIT (Just-In-Time com-
pilers), for the next generation of Java-powered wireless and embedded devices. It includes an enhanced
multiplier design for improved DSP performance.
The ARM926EJ-S processor supports the ARM debug architecture and includes logic to assist in both hardware
and software debug.
The ARM926EJ-S provides a complete high performance processor subsystem, including:
• An ARM9EJ-S integer core
• A Memory Management Unit (MMU)
• Separate instruction and data AMBA AHB bus interfaces
• Separate instruction and data TCM interfaces
SAM9G45 [DATASHEET] 31
6438K–ATARM–12-Feb-13
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