作者ooxx123 (ooxx)
看板Grad-ProbAsk
标题[理工] 计算机结构的问题
时间Mon Apr 6 13:52:56 2009
Assume a microprocessor has 20-bit address bus and 16-bit data bus.
The memory utilization involves 64K byte for I/O device,
64K byte for EPROM device, and other for SRAM.
How many SRAM devices of size 64K*8 are required in such a microprocessor?
我想问的是这个microprocessor的容量是多少?
我觉得应该是 2^位址线*资料线
= 2^20*16 (bit) 再除以8 bit 变成byte
可是我看了高铭写的解答 却是
2^位址线 * 8 bit = 2^20(byte)
让我搞混了 他的8-bit是哪里来的阿?
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