المعالج 8085 كتاب تصميم حاسبة

1) Connect a seven segment (common cathode) display to a 74LS48 decoder/driver. Use the pin information for the display as shown on the attached drawing (page 2).

2) Test the display by simulating a BCD input to the driver.


3) This RAM has the capacity to store 16 4-bit binary numbers. The pulser on the counter increments the address of the RAM and displays that address on the four LEDs. The seven segment display shows the value at that memory location.
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4) When the negative pulser, connected to the WE (write enable), goes low, the value of the four DIP switches is written to the memory location. Try writing your 11 digit student number into the first 11 memory locations on the RAM.

5) Try reading back your lab partner's student number.


6) (Design)-- Using principles learned in this lab, design a memory system which will store and display 32 8-bit numbers. Draw a block diagram of your design and explain how it operates.