NVIDIA Interview Question

Calculate fifo depth for following data rate Writing Data = 80 DATA/100 Clock (Randomization of 20 Data’s) Outgoing Data= 8 DATA/10 Clock. Burst size = 160

Interview Answers

Anonymous

Jun 21, 2018

Answer 32 Best case write = 160 data in 160 cycles Worst case read = ( 160 * 8/10) = 128 data in 160 cycles Depth = 160 - 128 = 32

27

Anonymous

Aug 3, 2022

In this case : 20 Data + 80 Valid Data + 80 Valid Data + 20 Data For best case , we have 160 Data writes in 160 clock cycles . For worst read case : In 10 clocks 8 data will be read In 160 clocks (8*160)/10 i.e. 128 data reads So depth of fifo = 160 -128 =32

1

Anonymous

Aug 3, 2022

In this case , we can have several combinations like : 20 Data + 80 Valid Data + 80 Valid Data + 20 Data For best case of write 160 data will be written in 160 cycles . For worst case of read : 8 data will be read in 10 clock cycles And in 160 clock cycle ,it will read (8*160/10) i.e. 128 Fifo depth is 160-128 =32

Anonymous

Jan 26, 2021

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