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參數(shù)資料
| 型號： | LPC2378FBD144 |
| 廠商： | NXP Semiconductors N.V. |
| 元件分類： | 數(shù)學(xué)處理器 |
| 英文描述： | Single-chip 16-bit-32-bit microcontrollers; 512 kB flash with ISP-IAP, Ethernet, USB 2.0, CAN, and 10-bit ADC-DAC |
| 封裝： | LPC2377FBD144<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486-1.html<1<Always Pb-free,;LPC2378FBD144<SOT486-1 (LQFP144)|<<http://www.nxp.com/packages/SOT486-1.htm |
| 文件頁數(shù)： | 19/68頁 |
| 文件大?。?/td> | 1443K |
| 代理商： | LPC2378FBD144 |
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LPC2377_78
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2010. All rights reserved.
Product data sheet
Rev. 5 — 17 June 2010
19 of 68
NXP Semiconductors
LPC2377/78
Single-chip 16-bit/32-bit microcontrollers
7.5 Interrupt controller
The ARM processor core has two interrupt inputs called Interrupt Request (IRQ) and Fast
Interrupt Request (FIQ). The VIC takes 32 interrupt request inputs which can be
programmed as FIQ or vectored IRQ types. The programmable assignment scheme
means that priorities of interrupts from the various peripherals can be dynamically
assigned and adjusted.
FIQs have the highest priority. If more than one request is assigned to FIQ, the VIC ORs
the requests to produce the FIQ signal to the ARM processor. The fastest possible FIQ
latency is achieved when only one request is classified as FIQ, because then the FIQ
service routine can simply start dealing with that device. But if more than one request is
assigned to the FIQ class, the FIQ service routine can read a word from the VIC that
identifies which FIQ source(s) is (are) requesting an interrupt.
Vectored IRQs, which include all interrupt requests that are not classified as FIQs, have a
programmable interrupt priority. When more than one interrupt is assigned the same
priority and occur simultaneously, the one connected to the lowest numbered VIC channel
will be serviced first.
The VIC ORs the requests from all of the vectored IRQs to produce the IRQ signal to the
ARM processor. The IRQ service routine can start by reading a register from the VIC and
jumping to the address supplied by that register.
7.5.1
Interrupt sources
Each peripheral device has one interrupt line connected to the VIC but may have several
interrupt flags. Individual interrupt flags may also represent more than one interrupt
source.
Any pin on Port 0 and Port 2 (total of 46 pins) regardless of the selected function, can be
programmed to generate an interrupt on a rising edge, a falling edge, or both. Such
interrupt requests coming from Port 0 and/or Port 2 will be combined with the EINT3
interrupt requests.
7.6 Pin connect block
The pin connect block allows selected pins of the microcontroller to have more than one
function. Configuration registers control the multiplexers to allow connection between the
pin and the on chip peripherals.
Peripherals should be connected to the appropriate pins prior to being activated and prior
to any related interrupt(s) being enabled. Activity of any enabled peripheral function that is
not mapped to a related pin should be considered undefined.
7.7 External memory controller
The LPC2377/78 EMC is an ARM PrimeCell MultiPort Memory Controller peripheral
offering support for asynchronous static memory devices such as RAM, ROM, and flash.
In addition, it can be used as an interface with off-chip memory-mapped devices and
peripherals. The EMC is an Advanced Microcontroller Bus Architecture (AMBA) compliant
peripheral.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2378FBD144,551 | 功能描述:ARM微控制器 - MCU ARM7 512KF/USB/ENET 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 最大時鐘頻率:72 MHz 程序存儲器大小: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 |
| LPC2378FBD144/CP32 | 制造商:NXP Semiconductors 功能描述:- Trays |
| LPC2378FBD144/CP3E | 制造商:NXP Semiconductors 功能描述: |
| LPC2378FBD144551 | 制造商:NXP Semiconductors 功能描述:IC 32BIT MCU ARM7 72MHZ LQFP-144 |
| LPC2378-STK | 功能描述:開發(fā)板和工具包 - ARM DEV BRD FOR LPC2378 512KB FLASH 16KB RAM RoHS:否 制造商:Arduino 產(chǎn)品:Development Boards 工具用于評估:ATSAM3X8EA-AU 核心:ARM Cortex M3 接口類型:DAC, ICSP, JTAG, UART, USB 工作電源電壓:3.3 V |
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