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參數(shù)資料
| 型號： | LPC2458FET180 |
| 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 micro; 512 kB flash, Ethernet, CAN, ISP-IAP, USB 2.0 device-host-OTG, external memory interface |
| 封裝： | LPC2458FET180<SOT570-3 (TFBGA180)|<<http://www.nxp.com/packages/SOT570-3.html<1<Always Pb-free,; |
| 文件頁數(shù)： | 42/80頁 |
| 文件大?。?/td> | 611K |
| 代理商： | LPC2458FET180 |
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LPC2458
All information provided in this document is subject to legal disclaimers.
NXP B.V. 2011. All rights reserved.
Product data sheet
Rev. 4 — 1 September 2011
42 of 80
NXP Semiconductors
LPC2458
Single-chip 16-bit/32-bit micro
DCC is accessed as a coprocessor 14 by the program running on the ARM7TDMI-S core.
The DCC allows the JTAG port to be used for sending and receiving data without affecting
the normal program flow. The DCC data and control registers are mapped in to addresses
in the EmbeddedICE logic.
The JTAG clock (TCK) must be slower than
1
6
of the CPU clock (CCLK) for the JTAG
interface to operate.
7.27.2
Embedded trace
Since the LPC2458 have significant amounts of on-chip memories, it is not possible to
determine how the processor core is operating simply by observing the external pins. The
ETM provides real-time trace capability for deeply embedded processor cores. It outputs
information about processor execution to a trace port. A software debugger allows
configuration of the ETM using a JTAG interface and displays the trace information that
has been captured.
The ETM is connected directly to the ARM core and not to the main AMBA system bus. It
compresses the trace information and exports it through a narrow trace port. An external
Trace Port Analyzer captures the trace information under software debugger control. The
trace port can broadcast the Instruction trace information. Instruction trace (or PC trace)
shows the flow of execution of the processor and provides a list of all the instructions that
were executed. Instruction trace is significantly compressed by only broadcasting branch
addresses as well as a set of status signals that indicate the pipeline status on a cycle by
cycle basis. Trace information generation can be controlled by selecting the trigger
resource. Trigger resources include address comparators, counters and sequencers.
Since trace information is compressed the software debugger requires a static image of
the code being executed. Self-modifying code can not be traced because of this
restriction.
7.27.3
RealMonitor
RealMonitor is a configurable software module, developed by ARM Inc., which enables
real-time debug. It is a lightweight debug monitor that runs in the background while users
debug their foreground application. It communicates with the host using the DCC, which is
present in the EmbeddedICE logic. The LPC2458 contain a specific configuration of
RealMonitor software programmed into the on-chip ROM memory.
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LPC2458FET180,551 | 功能描述:ARM微控制器 - MCU ARM7 512KF/USBH/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 |
| LPC2458FET180/CP32 | 功能描述:ARM微控制器 - MCU LPC2458FET180/TFBGA180/TRAYBDP 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 |
| LPC2458FET180551 | 制造商:NXP Semiconductors 功能描述:MCU ARM7 180TFBGA |
| LPC2460 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit micro; Ethernet, CAN, ISP/IAP, USB 2.0 device/host/OTG, external memory interface |
| LPC2460_08 | 制造商:PHILIPS 制造商全稱:NXP Semiconductors 功能描述:Flashless 16-bit/32-bit micro; Ethernet, CAN, ISP/IAP, USB 2.0 device/host/OTG, external memory interface |
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