1. Microcontrollers & Embedded Processors Anshul Parmar Nazim Ali Rohit Gambhir Acharya Narendra Dev College University of Delhi
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12. Examples Office systems and mobile equipment Building systems Manufacturing and Process Control Answering machines Copiers Faxes Laptops and notebooks Mobile Telephones PDAs, Personal organisers Still and video cameras Telephone systems Time recording systems Printer Microwave Air conditioning Backup lighting and generators Building management systems CTV systems Fire Control systems Heating and ventilating systems Lifts, elevators, escalators Lighting systems Security systems Security cameras Sprinkler systems Automated factories Bottling plants Energy control systems Manufacturing plants Nuclear power stations Oil refineries and related storage facilities Power grid systems Power stations Robots Switching systems Water and sewage systems
20. Mitsubishi Semiconductors is now “Renesas” M16C/26 family of microcontrollers – M30626 – 32K RAM, 384K Flash SKP = starter kit MDS = Microcontroller Data Embedded System
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24. Microcontroller Architectures CPU Program + Data Address Bus Data Bus Memory Von Neumann Architecture CPU Program Address Bus Data Bus Harvard Architecture Memory Data Address Bus Fetch Bus 0 0 0 2 n
29. Pin Description Pin No. Name Function Pins 1-8 Port 1 Input/Output Pin 9 RS Reset Pin 10-17 Port 3 Universal Input/Output Pin 10 RXD Serial asynchronous communication input or Serial synchronous communication output.
30. Pin 11 TXD Serial asynchronous/synchronous communication Pin 12 INT 0 Interrupt 0 input Pin 13 INT 1 Interrupt 1 input Pin 14 T 0 Counter 0 clock input Pin 15 T 1 Counter 1 clock input Pin 16 WR Write Pin 17 RD Read Pin 18,19 X 2, X 1 Internal oscillator I/O Pin 20 GND Ground
31. Pin 21-28 Port 2 If external memory is not in use then these pins are configured as universal I/O Pin 29 PSEN It is the read strobe to external memory Pin 30 ALE Will set the lower address byte (A0-A7) on Port 0 . Pin 31 EA When high executes instruction from internal program memory Pin 32-39 Port 0 Universal I/O pins
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