Content deleted Content added
m Removed a comma that didn't really need to be there. |
→Addressing: add info |
||
Line 74:
Usually several memory cells share the same address. For example, a 4 bit 'wide' RAM chip has 4 memory cells for each address. Often the width of the memory and that of the microprocessor are different, for a 32 bit microprocessor, eight 4 bit RAM chips would be needed.
Often more addresses are needed than can be provided by a device. In that case, external multiplexors to the device are used to activate the correct device that is being accessed. RAM is often byte addressable, although it is also possible to make RAM that is word-addressable.<ref>https://www.google.com.pa/books/edition/The_Essentials_of_Computer_Organization/QGPHAl9GE-IC?hl=en&gbpv=1&dq=size+of+a+memory+address&pg=PA321&printsec=frontcover</ref><ref>https://books.google.com.pa/books?id=-vQCEAAAQBAJ</ref>
==Memory hierarchy==
| |||