參數(shù)資料
型號(hào)： LPC2470
廠商： NXP Semiconductors N.V.
英文描述： Flashless 16-bit/32-bit micro; Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
中文描述： 毛邊16-bit/32-bit微，以太網(wǎng)，CAN，液晶顯示器，USB 2.0設(shè)備/主機(jī)/ OTG功能，外部存儲(chǔ)器接口
文件頁(yè)數(shù)： 26/72頁(yè)
文件大?。?/td> 365K
代理商： LPC2470
LPC2470_0
NXP B.V. 2007. All rights reserved.
Preliminary data sheet
Rev. 00.01 — 5 October 2007
26 of 72
NXP Semiconductors
LPC2470
Fast communication chip
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 ARM7TDMI-S processor also employs a unique architectural strategy known as
Thumb, which makes it ideally suited to high-volume applications with memory
restrictions, or applications where code density is an issue.
The key idea behind Thumb is that of a super-reduced instruction set. Essentially, the
ARM7TDMI-S processor has two instruction sets:
the standard 32-bit ARM set
a 16-bit Thumb set
The Thumb set’s 16-bit instruction length allows it to approach higher density compared to
standard ARM code while retaining most of the ARM’s performance.
7.2 On-chip SRAM
The LPC2470 includes a SRAM memory of 64 kB reserved for the ARM processor
exclusive use. This RAM may be used for code and/or data storage and may be accessed
as 8 bits, 16 bits, and 32 bits.
A 16 kB SRAM block serving as a buffer for the Ethernet controller and a 16 kB SRAM
associated with the second AHB bus can be used both for data and code storage, too.
The 2 kB RTC SRAM can be used for data storage only. The RTC SRAM is battery
powered and retains the content in the absence of the main power supply.
7.3 Memory map
The LPC2470 memory map incorporates several distinct regions as shown in
Table 5
and
Figure 4
.
In addition, the CPU interrupt vectors may be remapped to allow them to reside in either
boot ROM or SRAM (see
Section 7.26.6
).
Table 5.
Address range General use
0x0000 0000 to
0x3FFF FFFF
0x4000 0000 to
0x7FFF FFFF
LPC2470 memory usage and details
Address range details and description
0x3FFF C000 - 0x3FFF FFFF
Fast I/O
Fast GPIO registers
On-chip RAM
0x4000 0000 - 0x4000 FFFF
0x7FE0 0000 - 0x7FE0 3FFF
0x7FD0 0000 - 0x7FD0 3FFF
RAM (64 kB)
Ethernet RAM (16 kB)
USB RAM (16 kB)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LPC2470_11 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit microcontroller; Ethernet, CAN, LCD, USB 2.0 device/host/OTG
LPC2470_1109 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit microcontroller; Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
LPC2470FBD208 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit micro; Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
LPC2470FBD208,551 功能描述:ARM微控制器 - MCU LCD CONT/ETHNET USB/HOST/OTG RoHS:否 制造商:STMicroelectronics 核心:ARM Cortex M4F 處理器系列:STM32F373xx 數(shù)據(jù)總線寬度:32 bit 最大時(shí)鐘頻率:72 MHz 程序存儲(chǔ)器大小:256 KB 數(shù)據(jù) RAM 大小:32 KB 片上 ADC:Yes 工作電源電壓:1.65 V to 3.6 V, 2 V to 3.6 V, 2.2 V to 3.6 V 工作溫度范圍:- 40 C to + 85 C 封裝 / 箱體:LQFP-48 安裝風(fēng)格:SMD/SMT
LPC2470FET208 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit micro; Ethernet, CAN, LCD, USB 2.0 device/host/OTG, external memory interface
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