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These pins include input/output ports such as PORTA, PORTB, PORTC, PORTD, PORTE and two Vdd ports for input voltage. The PIC architecture is characterized by its multiple attributes:Separate code and data spaces Harvard architecture. A small number of fixed length instructions. Most instructions are single cycle execution, with one delay cycle on branches and skips. All RAM locations function as registers as both source and destination of math and other functions. A hardware stack for storing return addresses. Data space mapped CPU, port, and peripheral registers. The program counter is also mapped into the data space and writable. There is no distinction between memory space and register space because the RAM serves the job of both memory and registers, and it is usually just referred to as the register file. The keypad:This device is used to enter the password selected by the user and to arm or disarm the alarm by selecting the various profiles installed in the system. As you can see from our project’s picture we used a 4 x 4 keypad, as instructed by Dr.

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As stated by Briggs 2005, globalization has instigated the world to become a global village. This, in turn, has increased the level of complexity and intricacy of the information security aspect of the organizations across the world. There is greater…… This leaves those clients that are inside unsupervised while the guard is outside. There is also a lack of signage inside displaying rules and regulations along with directions. This propagates a lot of unnecessary questions being asked of the surety officer on duty. In order to alleviate these issues it would be essential to place distinct parking signage outside in order to help facilitate clients parking in the correct spaces.