spear-09-b042 STMicroelectronics, spear-09-b042 Datasheet - Page 23

• Manufacturer Part Number: spear-09-b042
• Description: Spear?? Basic Arm 926ej-s Core, Customizable Logic, Large Ip Portfolio Soc
• Manufacturer: STMicroelectronics

SPEAR-09-B042
8
8.1
8.1.1
8.1.2
Main blocks
CPU subsystem
Overview
The CPU sub-system includes the following blocks:
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CPU ARM 926EJ-S
The ARM926EJ-S processor is used, which is targeted for multi-tasking applications.
Belonging to ARM9 family of general-purpose microprocessors, it contains a memory
management unit, which provides virtual memory features, making it compliant with
WindowsCE, Linux and SymbianOS operating systems.
The ARM926EJ-S supports the 32-bit ARM and 16-bit Thumb instruction sets, enabling the
user to trade off between high performance and high code density and includes features for
efficient execution of Java byte codes.
It also uses the ARM debug architecture and includes logic to assist in software debug.
Its main features are:
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ARM 926EJS
Two timer channels
Interrupt controller (32 IRQ lines)
CORE f
Memory management unit
16 Kbyte of instruction CACHE
16 Kbyte of data CACHE
Configurable tightly coupled memory (I/D) size through the configurable logic array
ARM-V5TEJ instructions set architecture:
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AMBA bus interface
Embedded ICE-RT
ETM9 (embedded trace macro-cell)
ARM (32-bit), Thumb® (16-bit)
DSP extensions
JAVA
MAX
TM
333 MHz independent programmable for each CPU
(8-bit) instructions
Main blocks
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