answersLogoWhite

0

0,1,7. 8,9 are not used.

User Avatar

Wiki User

15y ago

What else can I help you with?

Related Questions

How many DMA channels exist?

the DMA channels 0, 1, 2 and 3 with 8-bit and DMA channels 4, 5, 6 and 7 with only 16 bits.


Is ide and dma the same thing?

No, IDE stands for Integrated Drive Electronics A hardware interface widely used to connect hard disks, optical discs and tape drives to a PC. Introduced in 1986 with 20MB of storage, capacities increased a thousandfold in less than two decades. Compared to the SCSI interface, IDE has been the more economical choice. (Direct Memory Access) Specialized circuitry or a dedicated microprocessor that transfers data from memory to memory without using the CPU. Although DMA may periodically steal cycles from the CPU, data are transferred much faster than using the CPU for every byte of transfer. On PCs, there are eight DMA channels commonly used as follows. Most sound cards are set to use DMA channel 1. See PIO mode. DMA Used for 0 8-bit transfer 1 8-bit transfer 2 Floppy disk controller 3 8-bit transfer 4 Cascaded from 0-3 5 16-bit transfer 6 16-bit transfer 7 16-bit transfer DMA Disk Transfers There are various modes of data transfer on IDE disk drives. The PIO modes use the CPU, and the DMA modes bypass the CPU.


What effect does cache memory on DMA?

1.DMA may lead to cache coherency problems. 2.May lead to bus error interrupt, which arent easy to process.


What Of the total amount of available water on earth what percent is usable?

1% of water is usable in this case .Since only 3% of water is usable as fresh water, 2% is unavailable in frozen form leaving approximately 1% of the earth's water usable.


A 2MB PCM has how many voice channels?

There are 32 channels in total. Out of which 31 are voice channels and 1 is signalling channel


What two numbers use to store all of a computers data?

0 (Zero) and 1 (One) are the two digits used in Binary code, which is the lowest form of code usable by a computer.


How many channels does T 1 have?

12,24,30,48?


What percentage of water on Earth is actually usable for drinking water?

Roughly 1% of the Earth's water is considered usable for drinking, with the majority being in the form of freshwater. However, only a fraction of that 1% is easily accessible due to factors such as pollution and contamination.


Give truth table for excess-3 to bcd code converter?

Excess-3 BCD a B c d w x y z 0 0 1 1 0 0 0 0 0 1 0 0 0 0 0 1 0 1 0 1 0 0 1 0 0 1 1 0 0 0 1 1 0 1 1 1 0 1 0 0 1 0 0 0 0 1 0 1 1 0 0 1 0 1 1 0 1 0 1 0 0 1 1 1 1 0 1 0 1 0 0 0 1 0 0 0 1 0 0 1 i'm not sure. but it should be the ans


What channels are the music channels on dish?

It all depends upon what DISH package you have. There are alot of music channels available on dish: channels 923 - 981 , channels 6001 - 6084.


What is the truth table for A B CY?

a b c y 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 FORMULA FOR possibilities = 2 ^(no of variables). Here its 4 so, 2n=24=16 Hence we have 16 possibilities.


Design a truth table up to 4 variable?

w x y z 0 0 0 0 0 0 0 1 0 0 1 0 0 0 1 1 0 1 0 0 0 1 0 1 0 1 1 0 0 1 1 1 1 0 0 0 1 0 0 1 1 0 1 0 1 0 1 1 1 1 0 0 1 1 0 1 1 1 1 0 1 1 1 1 FORMULA FOR possibilities = 2 ^(no of variables). Here its 4 so, 2n=24=16 Hence we have 16 possibilities.