Question

3) For cache design with following characteristics, complete the following tables for other parameters. Consider 16-bit for each word.

Answer 1

For 4G:

Cache Capacity for data in Byte = 2^3= 8 bytes.

Tag field = 16 bit - (12+3) bit = 1 bit

Cache Line size=2^12 /16=2^8=256 bits

For 8G:

Cache Capacity=2^4=16 bytes

For 16G:

Tag field =14 bit

Offset field =3 bit

Cache capacity=2^3 =8 bytes

Cache line size=64bit/2*16=2 (words)

Index field=log2(2)=1 bit

Answer 2

olution 4GB Cache line size-2offset bits 25 bytes 16words Cache size 2A32 bytes Cache line size: 16 words 216 bytes #otlines-2^ 32/(2^16)/2^ 2-2^18 Index size-log(2 18)-18 bits Tagsize-32-18-5-9 bits 2.8GB Cache line size-2ffset bits 24 bytes 8 words Cache size 264 bytes Cache line size-8 words Index-14 bits 3.16GB: Cache line size-2ffset bits 2A 3 bytes- 4 words Cache size-24128 bytes Cache line size 2 words Tagfield-16 bits

Main MemoryTag Field Index field Offset Field Cache Line Cache Capacity Capacity 4G SG 16G 9 bit 14 bit 16 bit 18 bit 14 bit 13 bit 5 bit 4 bit 3 bit Size 16 words 8 words 2 words