LPC3130_3131 NXP Semiconductors, LPC3130_3131 Datasheet - Page 13
LPC3130_3131
Manufacturer Part Number
LPC3130_3131
Description
The NXP LPC3130/3131 combine an 180 MHz ARM926EJ-S CPU core, high-speed USB2
Manufacturer
NXP Semiconductors
Datasheet
1.LPC3130_3131.pdf
(68 pages)
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NXP Semiconductors
6. Functional description
LPC3130_3131_1
Preliminary data sheet
6.1 ARM926EJ-S
The processor embedded in the LPC3130/3131 is the ARM926EJ-S. It is a member of the
ARM9 family of general-purpose microprocessors. The ARM926EJ-S is intended for
multi-tasking applications where full memory management, high performance, and low
power are important.
This module has the following features:
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ARM926EJ-S processor core which uses a five-stage pipeline consisting of fetch,
decode, execute, memory, and write stages. The processor supports both the 32-bit
ARM and 16-bit Thumb instruction sets, which allows a trade off between high
performance and high code density. The ARM926EJ-S also executes an extended
ARMv5TE instruction set which includes support for Java byte code execution.
Contains an AMBA BIU for both data accesses and instruction fetches.
Memory Management Unit (MMU).
16 kB instruction and 16 kB data separate cache memories with an 8 word line length.
The caches are organized using Harvard architecture.
Little Endian is supported.
The ARM926EJ-S processor supports the ARM debug architecture and includes logic
to assist in both hardware and software debugging.
Supports dynamic clock gating for power reduction.
The processor core clock can be set equal to the AHB bus clock or to an integer
number times the AHB bus clock. The processor can be switched dynamically
between these settings.
ARM stall support.
Rev. 1 — 9 February 2009
Low-cost, low-power ARM926EJ-S microcontrollers
LPC3130/3131
© NXP B.V. 2009. All rights reserved.
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