The ARM7 LPC2148 microcontroller is a 32-bit processor architecture that is widely used in embedded systems. It is a member of the ARM7 family of microcontrollers and is manufactured by NXP Semiconductors (formerly Philips). The LPC2148 is a highly efficient and reliable option for application developers due to its in-built features and peripherals .
The LPC2148 microcontroller offers an impressive range of on-chip memory options that cater to the diverse needs of microcontroller applications. With its extensive flash memory system, versatile SRAM, and flexible input/output ports, this microcontroller provides developers with the necessary tools to create powerful and efficient embedded solutions.
The ARM7 processor is a balance between classic and new-Cortex sequence. It is commonly used in embedded system applications and is tremendous in finding the resources existing on the internet with excellent documentation offered by NXP Semiconductors . The architecture of an ARM processor was licensed by many corporations for designing ARM processor-based SoC products and CPUs. This allows the corporations to manufacture their products using ARM architecture. Likewise, all main semiconductor companies will make ARM-based SOCs such as Samsung, Atmel, TI, etc.
The LPC2148 microcontroller is based on the ARM7 family and is available in a small LQFP64 package. It has an on-chip static RAM of 8 kB-40 kB and an on-chip flash memory of 32 kB-512 kB. The wide interface is 128 bit, or accelerator allows 60 MHz high-speed operation. It takes 400 milliseconds time for erasing the data in full chip and 1 millisecond time for 256 bytes of programming. Embedded Trace interfaces and Embedded ICE RT offers real-time debugging with high-speed tracing of instruction execution and on-chip Real Monitor software. It has 2 kB of endpoint RAM and USB 2.0 full speed device controller.
The LPC2148 microcontroller is a versatile and powerful device that can be used in a wide range of applications. It is particularly well-suited for use in automotive braking systems, mobile phones, and other embedded systems.
The LPC2148 microcontroller is a versatile and powerful device that can be used in a wide range of applications. It is particularly well-suited for use in automotive braking systems, mobile phones, and other embedded systems.
LPC2148 Microcontroller Memory Configuration
The LPC2148 microcontroller is equipped with a range of on-chip memory options to meet the requirements of various microcontroller applications. Let’s explore the memory capabilities of this versatile microcontroller.
On-Chip FLASH Memory System
The LPC2148 microcontroller boasts a powerful 512-kB Flash memory system that serves dual purposes – data storage and code execution. This flash memory can be programmed using various methods, providing flexibility and convenience to developers.
The following options are available for programming the on-chip FLASH memory:
1. JTAG Interface in Serial Mode: Incorporating a JTAG interface allows for seamless programming of the flash memory, ensuring efficient data storage and code execution.
2. UART or ISP (In System Programming): With the UART or ISP capability, the LPC2148 microcontroller enables hassle-free programming of the flash memory, simplifying the development process.
3. In-Application Programming (IAP) Function: The LPC2148 microcontroller also supports In-Application Programming (IAP), providing the ability to modify the program even while it is running. This dynamic feature adds an extra layer of convenience and adaptability.
When the microcontroller is equipped with the on-chip boot-loader, an additional 500 kB of flash memory becomes available for consumer code. The flash memory on this microcontroller offers an impressive minimum of 100,000 writes/erase cycles, ensuring durability and longevity. With a lifespan of 20 years, data preservation is guaranteed.
On-Chip SRAM
In addition to the flash memory system, the LPC2148 microcontroller includes 32-kB of on-chip static RAM (SRAM). This SRAM is highly practical for storing data and executing code. It is compatible with 8-bit, 16-bit, and 32-bit configurations, providing flexibility and versatility for developers.
Input/Output Ports
To facilitate seamless connectivity and peripheral integration, the LPC2148 microcontroller features two input/output ports known as P0 and P1. Each port consists of a series of pins, denoted as PX.Y, where ‘X’ represents the port number (0 or 1), and ‘Y’ represents the individual pin number (ranging from 0 to 31).
Interestingly, these port pins are not limited to a single function. They can be programmed to perform various tasks, thus enhancing the microcontroller’s adaptability. For example, the pin P0.8 can be utilized as a general-purpose input/output (GPIO) pin or as the transmit (Tx) pin of UART1, AD1.1, or PWM4. Furthermore, during the reset phase, all pins are arranged as GPIO, ensuring seamless initialization.
In conclusion, the ARM7 LPC2148 microcontroller is a powerful and versatile device that is widely used in embedded system. Its in-built features and peripherals make it a highly efficient and reliable option for application developers. The LPC2148 microcontroller is based on the ARM7 family and is available in a small LQFP64 package. It has an on-chip static RAM of 8 kB-40 kB and an on-chip flash memory of 32 kB-512 kB. The wide interface is 128 bit, or accelerator allows 60 MHz high-speed operation. It takes 400 milliseconds time for erasing the data in full chip and 1 millisecond time for 256 bytes of programming. Embedded Trace interfaces and Embedded ICE RT offers real-time debugging with high-speed tracing of instruction execution and on-chip Real Monitor software. It has 2 kB of endpoint RAM and USB 2.0 full speed device controller.