Memory Time

Memory Access Time is a measure of throughput. This is similar to driving a car to a spot and then picking up a package and then driving back to the location you started from.
Larger, separate internal caches improve performance by reducing the average memory access time and providing fast access to recently-used instructions and data.
Memory Write Time is akin to picking up a package and delivering it to a certain location. This does not include a check-in back at the place of origin. Therefore, the write-time is lower than the total access time.

Think of memory as bits of information that travels through a pipe, your hard drive stores all your files on its magnetic platters.But your hard drive is not the quickest way to access the information you are working with,so it puts information thatyou are currently using in one of three memory banks.Cache, Ram, and Rom. These three memory locations all must use the register(address register to control the flow of memory in and out of these three memory locations. But all three locations can not send innfo down the (pipe) at the same time because when information is called out of ram, rom or cache, other info must be sent out to allow room for the called on information so the register is like a traffic cop to information going to and coming from these three memory locations, hence you have Memory read(MEMR) and Memory Write(MEMW) Time.

Greetings,

Memory Access Time:

When memory is read or written, this is called a memory access. A specific procedure is used to control each access to memory, which consists of having the memory controller generate the correct signals to specify which memory location needs to be accessed, and then having the data show up on the data bus to be read by the processor or whatever other device requested it.

Memory Write Time:

Since a modern PC reads or writes 64 bits at a time, each read or write involves simultaneous accesses to as many as 64 different DRAM chips. A write process is performed similarly, except of course that the data is read into the chips instead of being sent out by them. A special signal called "R/W" (actually written with a horizontal line over the "W") controls whether a read or write is being performed during the access.

Regards,

Maxwell

This question was auto closed due to inactivity