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Q: Why no of output ports in the peripheral mapped io is 256?
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What is the Difference between memory mapped IO and peripheral mapped IO?

A memory mapped IO device is an IO device that responds to a specific address when IO/M- is low. A peripheral (or IO) mapped IO device is an IO device that responds to a specific address when IO/M- is high.Many system designers ignore IO/M- in favor of memory mapped IO.This eliminates one term in the chip select logic for every device.This allows you to use all addressing modes and instructions when manipulating an IO device, as opposed to using only IN and OUT.This allows you to potentially have more than 256 different IO devices.The downside is that you reduce the addressable main memory in the system, i.e. you cannot have all 64K available to you, but this is not generally a problem in most controller designs. You also must decode 16 address lines instead of just 8 when accessing the device.


How many input output devices can the 8085 microprocessor access?

(00-FF) 256 devices!


What is 256 times 256?

65,536 = 256 x 256 = 256²


What is the 4x4x4x4?

256


What is the mean mode and median to 256 265 247 256?

(247, 256, 256, 265) The mean is 256 The mode is 256 The median is 256


What is 256 cubed?

2563 = 256 x 256 x 256 = 16777216


What is 12 percent of 256?

12% of 256= 12% * 256= 0.12 * 256= 30.72


What is negative 4 to the fourth power?

256


What is 75 percent of 256?

75% of 256= 75% * 256= 0.75 * 256= 192


What is 40 percent of 256?

40% of 256= 40% * 256= 0.4 * 256= 102.4


What is 34.9 percent of 256?

34.9% of 256 = 34.9% * 256 = 0.349 * 256 = 89.344


How many hundreds in 25600?

256