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What is the need for address and data alignment for DMA transfer?
Wiki User
∙ 14y ago
Data alignment pertains to the starting address of some block of memory being a multiple of the basic data size, such as a 16 or 32 bit word, or being related to the block size of an IO device, such as a disc drive with a sector size of 512 bytes. The 8085 microprocessor, itself, does not care about alignment, as it is an 8 bit computer running on an 8 bit bus. (The 8086 microprocessor does care, because misalignment can cause performance penalties or corruption, but this article deals with the 8085, not the 8086.) External devices, however, such as the 8237 DMA Controller, may well impose limitations on the starting address of a block transfer, because of their internal design. Each case is specific, so you need to consult the documentation of your specific device.
Wiki User
∙ 14y ago
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Can Mov used in 8085 for immediate data transfer?
No, not at all this instruction MOV can not be used for immediate data transfer. You will need to use command MVI Rd, 8 Bit Data for immediate data transfer.
What uses does a data transfer switch have?
A data transfer switch can change power sources during a power outage and avoid a shutdown to a critical data center. Data transfer switches can monitor voltage capacity and direct it to circuits that need it for cooling or heating purposes.
Can you transfer modern warfare 2 data?
yes. but you need a flashdrive
What is meant by isochronous data transfer?
Isochronous data transfer ensures that data flows at a pre-set rate so that an application can handle it in a timed way. For multimedia applications, this kind of data transfer reduces the need for buffering and helps ensure a continuous presentation for the viewer.
You had an xbox 360 pro which broke down on you so you are buying an elite how do you transfer the data from your old hdd to your new one?
you need to buy a memory card and then transfer the data to the hard disk
Do you need an alignment with a bigger size tire?
A tire alignment is not necessary when changing tire sizes. You can tell by the wear on your previous tires if you need an alignment. If you have uneven wear, get an alignment.
Does this item require a computer to use?
To use the item, you do not need a computer, but you will need one to be able to transfer the data when you are finished.
What is address sequencing?
In serial data devices, such as EEPROM, Flash and Hard Drives where data is echanged serially, addresses need to be sent with the data for each byte or block of data. In parallel data devices, such as DRAM, an address is sent with every byte. With address sequencing, if the data is sequential and not scattered (see "defragmentation" for hard drives or the use of the TRIM command for SSDs and Flash), special read/write commands that do not need to resend address data can be used. This can speed up data access and, for DRAM, save on battery life by not needing to send an address each time. Another technique related to this is "page mode access".
What Issues in handling multimedia data?
Mainly that you may need to handle large amounts of data - this can be relevant both for storage and for transfer over networks.
Do you need a memory card reader to transfer data to a new card?
Yep, try SanDisk SDDR-89
How do you delete Pokemon off your pokewalker?
You will need to transfer the data back. Please see the related link below.
Do you need a wheel alignment when you by new tires?
Depends on when you had your last alignment and the condition of the tires you removed. It they were wearing perfectly even then you may not need an alignment. If you have not had an alignment in the last 36,000 miles you may very well need one. Judgment call on your part based on the evidence.
