System requirements for chip design, Computer Engineering

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The Peripheral interface chip system requires the construction of the interface chip circuit, which is controlled by main micro-controller via the user interface. I also need set of various programs or instructions using C- language/ C - Compiler for the PIC micro and I2C codes to communicate between the main micro and the interface device through a simple bi-directional 2-wire, serial data (SDA) and serial clock (SCL) bus for inter-IC control. The key objectives are listed below.
Key Objectives:

• Interface chip circuit design
• User Interface i.e. (keypads and LCD display)
• Uploading codes to the Main Micro controller using ICD2
• Interface PIC microcontrollers via I2C bus.
• Writing functions or programs in C-language / C - Compiler for both Main Micro controller and Interface PIC microcontroller
• Writing low level routines or programs to handle communications between the peripherals
• I2C codes to communicate between the main micro and the interface device

TABLE: Specifications considered in the Project Designed:

Power Supply Voltage	2.0v to 5.5v
Current Sink/Source	25mA/25mA
Temperature	-40°C to 125°C
Watchdog timer	2.1uA
Clock Frequency (RTC)	32KHz -100KHz
PIC Micro-controller Family	PIC18F452
User Interface Device	LCD and 4x4 Matrix keypads
Serial Interface	I2C Protocol Bus
Software application	MPLAB MCC18- language Compiler

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