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AM3874BCYE80 データシート(PDF) 9 Page - Texas Instruments

部品番号 AM3874BCYE80
部品情報  Sitara ARM Processors
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ホームページ  http://www.ti.com
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AM3874BCYE80 データシート(HTML) 9 Page - Texas Instruments

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Arbiter
128
ICECrusher
Trace
Debug
48KB ROM
64KB RAM
ARM Cortex-A8
Interrupt Controller
(AINTC)
L3
DMM
128
64
64
128
128 128
PLL_ARM
128
System Events
32
32
128
ARM Cortex-A8
NEON
ETM
512KB L2$
32KB L1I$ 32KB L1D$
DEVOSC
AM3874, AM3871
www.ti.com
SPRS695D – SEPTEMBER 2011 – REVISED JANUARY 2016
3.3
Device Compatibility
3.4
ARM Cortex-A8 Microprocessor Unit (MPU) Subsystem Overview
The ARM Cortex-A8 Subsystem is designed to give the ARM Cortex-A8 Master control of the device. In
general, the ARM Cortex-A8 is responsible for configuration and control of the various subsystems,
peripherals, and external memories.
The ARM Cortex-A8 Subsystem includes the following features:
ARM Cortex-A8 RISC processor:
ARMv7 ISA plus Thumb2™, JazelleX™, and Media Extensions
Neon™ Floating-Point Unit
Enhanced Memory Management Unit (MMU)
Little Endian
32KB L1 Instruction Cache
32KB L1 Data Cache
512KB L2 Cache
CoreSight Embedded Trace Module (ETM)
ARM Cortex-A8 Interrupt Controller (AINTC)
Embedded PLL Controller (PLL_ARM)
64KB Internal RAM
48KB Internal Public ROM
Figure 3-1 shows the ARM Cortex-A8 Subsystem for the device.
Figure 3-1. ARM Cortex-A8 Subsystem
For more details on the ARM Cortex-A8 Subsystem, see the System MMU section of the Chip Level
Resources chapter of the AM387x Sitara™ ARM Processors Technical Reference Manual (Literature
Number: SPRUGZ7).
3.4.1
ARM Cortex-A8 RISC Processor
The ARM Cortex-A8 Subsystem integrates the ARM Cortex-A8 processor. The ARM Cortex-A8 processor
is a member of ARM Cortex family of general-purpose microprocessors. This processor is targeted at
multitasking applications where full memory management, high performance, low die size, and low power
are all important. The ARM Cortex-A8 processor supports the ARM debug architecture and includes logic
to assist in both hardware and software debug. The ARM Cortex-A8 processor has a Harvard architecture
and provides a complete high-performance subsystem, including:
ARM Cortex-A8 Integer Core
Superscalar ARMv7 Instruction Set
Thumb-2 Instruction Set
Copyright © 2011–2016, Texas Instruments Incorporated
Device Overview
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Product Folder Links: AM3874 AM3871


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