DEMO9S08SE8

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Introduction

The DEMO9S08SE8 Application Field (AF) is an evaluation board for the Freescale (formerly Motorola) 9S08SE8 8-Bit microcontroller. This board is designed to enable designers to quickly evaluate the capability of the microcontroller, allowing them to determine if it meets their design criteria. In addition, the board also serves as a platform for development, debug, and testing of applications utilizing the 9S08SE8 microcontroller.

Overview of the DEMO9S08SE8

The DEMO9S08SE8 board consists of the following components:

• 9S08SE8 Microcontroller
• External Memory
• 4K Bytes EEPROM
• Power Supply Connectors
• External Bus Interface (EBI) Connectors
• On-Board Debug Interface (ODI) Connectors
• Peripheral Interface

The 9S08SE8 microcontroller provides 64K Bytes of Flash, 4K Bytes of RAM, and 256 bytes of Flash Memory. The board also includes an External Memory Interface (EMI) for connecting up to 4K Bytes of additional external memory.

DEMO9S08SE8 Working Principle

The DEMO9S08SE8 board functions by utilizing the 9S08SE8 microcontroller’s internal clock, which is generated by the on-chip oscillator or can be connected to an external clock. The microcontroller communicates with the Evaluation Board’s components through a set of on-board communication buses and peripherals. The board’s Operating System creates an environment for the user to design, debug, and test their application.

The primary software used by the Evaluation Board is the On-Board Debug Interface. The ODI allows the user to debug their application by communicating with the microcontroller via JTAG and Insight emulation tools. The ODI uses the On-Chip Debug Module (OCDM) to provide an interface to the microcontroller. The OCDM provides the user with the capability to halt the microcontroller’s execution and step through the instructions, as well as register and memory interactions.

In addition, the user can also utilize the Evaluation board’s External Bus Interface (EBI) for connecting to external memory devices. The EBI allows the user to interface the board with external memory components up to 4K Bytes in size. In addition, the user can also utilize the EBI to access other peripherals, such as analog-to-digital converters (ADC) and digital-to-analog converters (DAC).

Conclusion

In conclusion, the DEMO9S08SE8 Application Field (AF) is an evaluation board for the Freescale (formerly Motorola) 9S08SE8 8-Bit microcontroller. The board is designed to enable designers to quickly evaluate the capability of the microcontroller, allowing them to determine if it meets their design criteria. The board also serves as a platform for development, debug, and testing of applications utilizing the 9S08SE8 microcontroller. The primary software used by the Evaluation Board is the On-Board Debug Interface (ODI). The user can also utilize the Evaluation board’s External Bus Interface (EBI) for connecting to external memory devices. In addition, the user can also utilize the EBI to access other peripherals, such as analog-to-digital converters (ADC) and digital-to-analog converters (DAC).

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