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參數(shù)資料
| 型號： | LPC2387FBD100 |
| 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 MCU; 512 kB flash with ISP-IAP, Ethernet, USB 2.0 device-host-OTG, CAN, and 10-bit ADC-DAC |
| 封裝： | LPC2387FBD100<SOT407-1 (LQFP100)|<<http://www.nxp.com/packages/SOT407-1.html<1<Always Pb-free,; |
| 文件頁數(shù)： | 32/64頁 |
| 文件大?。?/td> | 447K |
| 代理商： | LPC2387FBD100 |
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LPC2387
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 10 February 2011
32 of 64
NXP Semiconductors
LPC2387
Single-chip 16-bit/32-bit MCU
7.25.2
Brownout detection
The LPC2387 includes 2-stage monitoring of the voltage on the V
DD(DCDC)(3V3)
pins. If this
voltage falls below 2.95 V, the BOD asserts an interrupt signal to the Vectored Interrupt
Controller. This signal can be enabled for interrupt in the Interrupt Enable Register in the
VIC in order to cause a CPU interrupt; if not, software can monitor the signal by reading a
dedicated status register.
The second stage of low-voltage detection asserts Reset to inactivate the LPC2387 when
the voltage on the V
DD(DCDC)(3V3)
pins falls below 2.65 V. This Reset prevents alteration of
the flash as operation of the various elements of the chip would otherwise become
unreliable due to low voltage. The BOD circuit maintains this reset down below 1 V, at
which point the power-on reset circuitry maintains the overall Reset.
Both the 2.95 V and 2.65 V thresholds include some hysteresis. In normal operation, this
hysteresis allows the 2.95 V detection to reliably interrupt, or a regularly executed event
loop to sense the condition.
7.25.3
Code security (Code Read Protection - CRP)
This feature of the LPC2387 allows user to enable different levels of security in the system
so that access to the on-chip flash and use of the JTAG and ISP can be restricted. When
needed, CRP is invoked by programming a specific pattern into a dedicated flash location.
IAP commands are not affected by the CRP.
There are three levels of the Code Read Protection.
CRP1 disables access to chip via the JTAG and allows partial flash update (excluding
flash sector 0) using a limited set of the ISP commands. This mode is useful when CRP is
required and flash field updates are needed but all sectors can not be erased.
CRP2 disables access to chip via the JTAG and only allows full flash erase and update
using a reduced set of the ISP commands.
Running an application with level CRP3 selected fully disables any access to chip via the
JTAG pins and the ISP. This mode effectively disables ISP override using P2[10] pin, too.
It is up to the user’s application to provide (if needed) flash update mechanism using IAP
calls or call reinvoke ISP command to enable flash update via UART0.
7.25.4
AHB
The LPC2387 implements two AHBs in order to allow the Ethernet block to operate
without interference caused by other system activity. The primary AHB, referred to as
AHB1, includes the Vectored Interrupt Controller, GPDMA controller, USB interface, and
16 kB SRAM primarily intended for use by the USB.
CAUTION
If level three Code Read Protection (CRP3) is selected, no future factory testing can be
performed on the device.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2387FBD100,551 | 功能描述:ARM微控制器 - MCU 16/32 bit micro 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 |
| LPC2387FBD100551 | 制造商:NXP Semiconductors 功能描述:IC 32BIT MCU 72MHZ LQFP-100 |
| LPC2388 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit micro; 512 kB flash with ISP/IAP, Ethernet, USB 2.0 device/host/OTG, CAN, and 10-bit ADC/DAC |
| LPC2388FBD144 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Single-chip 16-bit/32-bit microcontroller; 512 kB flash with ISP/IAP, Ethernet, USB 2.0 device/host/OTG, CAN, and 10-bit ADC/DAC |
| LPC2388FBD144,551 | 功能描述:ARM微控制器 - MCU 16/32 bit micro 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 |
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