MC9S08SE8CWLR

The MC9S08SE8CWLR is an 8-bit microcontroller (MCU) which is primarily used to control tasks within embedded systems. It is part of the S08 family of MCUs produced by NXP Semiconductors. It is available in a wide range of packages, including 64 pin plastic LQFP and 61 pin plastic BGA. The MC9S08SE8CWLR has program flash memory of up to 192KB, and supports direct factory programming using a VSWM (Vectored Serial Wire Memory) device.

Application Fields

The MC9S08SE8CWLR is suitable for a range of applications, from automotive, industrial and consumer products, to home automation, medical and hand-held devices. It has an extensive peripheral library to address communication, detection and measurement, real-time control and data processing requirements. Examples of applications include airbags and safety systems in automobiles, intrusion alarms, washer and dryers, and electronic gateways for data acquisition and control of lighting, heating and ventilation systems.

The MC9S08SE8CWLR offers several integrated security features such as secured program execution, communications encryption and authentication, secure bootloader, and serial number and cryptographic key storage. These features help to protect the MCU from malicious attacks, ensuring reliable and secure operation.

Working Principle

The main function of the MC9S08SE8CWLR is to process data. It accomplishes this by executing software code that is stored in memory. This code can be written in assembly language or higher level languages like C, C++ and Java, depending on the development toolchain being used. The MC9S08SE8CWLR is based on a Harvard architecture, meaning that it has separate memory spaces for program and data, allowing the processor to fetch instructions and data simultaneously.

The MC9S08SE8CWLR uses an 8-bit internal data bus and two levels of program memory. The main program memory, called the Program Flash, uses a Single Cycle Access (SCA) system. This system optimizes the processor performance, enabling it to execute instructions in one clock cycle. In addition, the MC9S08SE8CWLR has a second level of onboard program memory, called Embedded EEPROM, that can be used for data or non-volatile storage.

The MC9S08SE8CWLR also features a core set of peripherals, including an 8-channel 8-bit Analog-to-Digital converter (ADC), an 8-bit Digital-to-Analog converter (DAC), and up to 6 serial ports. These peripherals offer the ability to interact with external devices, enabling functions such as analog input and output, communication, timing and information exchange. In addition, the MCU can be connected to external memory devices such as external flash, SRAM and EEPROM, as well as external peripheral devices.

To facilitate the development of applications for the MC9S08SE8CWLR, NXP provides various software tools and development kits. These tools include an IDE called CodeWarrior, a debugger, and a performance analyzer. In addition, the MC9S08SE8CWLR is supported by third-party software tools, including Visual Studio and Keil.

The MC9S08SE8CWLR is a versatile MCU that is capable of performing multiple tasks within embedded systems. It has a large memory capacity, a wide range of peripherals, and is easy to configure and integrate into a variety of applications. With the right development tools, the MC9S08SE8CWLR is well suited to low power, high performance applications, such as those found in automotive, industrial and consumer products.