LPC1820FET100 NXP Semiconductors, LPC1820FET100 Datasheet - Page 67
LPC1820FET100
Manufacturer Part Number
LPC1820FET100
Description
The LPC1820FET100 is a high-performance, cost-effective Cortex-M3 microcontroller featuring 168 kB of SRAM, and advanced peripherals including High Speed USB 2
Manufacturer
NXP Semiconductors
Datasheet
1.LPC1810FBD144.pdf
(157 pages)
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7. Functional description
LPC1850_30_20_10
Preliminary data sheet
7.1 Architectural overview
7.2 ARM Cortex-M3 processor
The ARM Cortex-M3 includes three AHB-Lite buses: the system bus, the I-CODE bus,
and the D-code bus. The I-CODE and D-code core buses allow for concurrent code and
data accesses from different slave ports.
The LPC1850/30/20/10 use a multi-layer AHB matrix to connect the ARM Cortex-M3
buses and other bus masters to peripherals in a flexible manner that optimizes
performance by allowing peripherals that are on different slave ports of the matrix to be
accessed simultaneously by different bus masters.
The ARM Cortex-M3 is a general purpose, 32-bit microprocessor, which offers high
performance and very low power consumption. The ARM Cortex-M3 offers many new
features, including a Thumb-2 instruction set, low interrupt latency, hardware multiply and
divide, interruptable/continuable multiple load and store instructions, automatic state save
and restore for interrupts, tightly integrated interrupt controller with wake-up interrupt
controller, and multiple core buses capable of simultaneous accesses.
Pipeline techniques are employed so that all parts of the processing and memory systems
can operate continuously. Typically, while one instruction is being executed, its successor
is being decoded, and a third instruction is being fetched from memory.
The ARM Cortex-M3 processor is described in detail in the Cortex-M3 Technical
Reference Manual.
All information provided in this document is subject to legal disclaimers.
Rev. 3.1 — 15 December 2011
32-bit ARM Cortex-M3 microcontroller
LPC1850/30/20/10
© NXP B.V. 2011. All rights reserved.
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