BatmanVS6900 BatmanVS6900

18-10-2019
Computers and Technology

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The address space 0x0000-0x3FF is assigned to I/O peripherals of a given HCS12 chip. How many K bytes is this? (Points : 2) 2K
3K
8K
1K

Respuesta :

Manetho Manetho

18-10-2019

Answer:

D. 1K

Explanation:

The address space 0x0000-0x3FF is of 1KB(One Kilo Byte) since 0x3ff is equal to 1023. therefore 1023=1 KB.

bitwise 0x3ff zeros out the top bits of the number such that the result is always between 0 and 1023. It is essentially the same thing as modulo( num,1024) for positive values of num.

Hence the answer is D 1K

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