1. You are given a box of 4k by 4-bit memory chips, and asked to construct from

1) d,.5 2) a. 4G 3) a) e. 24M b) e.256Mbytes

ID: 3535872 • Letter: 1

Question

You are given a box of 4k by 4-bit memory chips, and asked to construct from them a 128k

by 1-byte memory module, utilising the Chip Select (CS) input on each of the chips. This

will require "two levels" of addressing - i.e. a portion of the address will be input to the

address pins of the individual chips, and a portion will be input to a module-level decoder

driving the chips' CS pins. How many of the bits will be input to this module-level decoder?

a. 2 b. 3 c. 4 d. 5 e. 6 f. 8

What is the address space of a system with 28 bit addressing, byte addressability, and 16-bit word size?

a. 4 G b. 2 G c. 256 M d. 64 M e. 16 M f. 256 k

The following two questions concern an ISA that has word addressable memory; you also

know that the system can perform addition of 32-bit two's complement integers, and it uses 24-bit addressing.

1). What is this ISAâ€™s address space?

a. 32 b. 24k c. 64k d. 16M e. 24M f. 32G

2). What is the total memory available in this ISA?

a. 64 kbytes b. 256 kbytes c. 1 Mbytes d. 64 Mbytes e. 256 Mbytes f. 1 Gbytes

1) d,.5

2) a. 4G

a) e. 24M

b) e.256Mbytes

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.