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AM1707BZKB4 Datasheet(Fiches technique) 9 Page - Texas Instruments

Numéro de pièce AM1707BZKB4
Description  AM1707 ARM Microprocessor
Télécharger  198 Pages
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Fabricant  TI [Texas Instruments]
Site Internet  http://www.ti.com
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AM1707
www.ti.com
SPRS637A – FEBRUARY 2010 – REVISED APRIL 2010
3.2
Device Compatibility
The ARM926EJ-S RISC CPU is compatible with other ARM9 CPUs from ARM Holdings plc.
3.3
ARM Subsystem
The ARM Subsystem includes the following features:
ARM926EJ-S RISC processor
ARMv5TEJ (32/16-bit) instruction set
Little endian
System Control Co-Processor 15 (CP15)
MMU
16KB Instruction cache
16KB Data cache
Write Buffer
Embedded Trace Module and Embedded Trace Buffer (ETM/ETB)
ARM Interrupt controller
3.3.1
ARM926EJ-S RISC CPU
The ARM Subsystem integrates the ARM926EJ-S processor. The ARM926EJ-S processor is a member of
ARM9 family of general-purpose microprocessors. This processor is targeted at multi-tasking applications
where full memory management, high performance, low die size, and low power are all important. 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. Specifically, the ARM926EJ-S processor
supports the ARMv5TEJ instruction set, which includes features for efficient execution of Java byte codes,
providing Java performance similar to Just in Time (JIT) Java interpreter, but without associated code
overhead.
The ARM926EJ-S processor supports the ARM debug architecture and includes logic to assist in both
hardware and software debug. The ARM926EJ-S processor has a Harvard architecture and provides a
complete high performance subsystem, including:
ARM926EJ -S integer core
CP15 system control coprocessor
Memory Management Unit (MMU)
Separate instruction and data caches
Write buffer
Separate instruction and data (internal RAM) interfaces
Separate instruction and data AHB bus interfaces
Embedded Trace Module and Embedded Trace Buffer (ETM/ETB)
For more complete details on the ARM9, refer to the ARM926EJ-S Technical Reference Manual, available
at http://www.arm.com
3.3.2
CP15
The ARM926EJ-S system control coprocessor (CP15) is used to configure and control instruction and
data caches, Memory Management Unit (MMU), and other ARM subsystem functions. The CP15 registers
are programmed using the MRC and MCR ARM instructions, when the ARM in a privileged mode such as
supervisor or system mode.
Copyright © 2010, Texas Instruments Incorporated
Device Overview
9
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