嵌入式系统内存问题

Jerry_fw 2011-06-21 02:46:48
哪位大哥跟跟我讲讲嵌入式系统(PXA 270 320等等一些手机的CPU)为什么内存都是那么小,这跟CPU有什么关系?
...全文
35 1 收藏 2
写回复
2 条回复
切换为时间正序
当前发帖距今超过3年,不再开放新的回复
发表回复
huabinsir 2011-06-21
[Quote=引用 1 楼 hahahaha_hax4 的回复:]
The size of the system memory is affected by many factors:

(1) Cost. You system will carry less memory if the final product is cost sensitive

(2) Latency and Density. The bigger the memory size……
[/Quote]

正确.
回复
哈皮歪詩 2011-06-21
The size of the system memory is affected by many factors:

(1) Cost. You system will carry less memory if the final product is cost sensitive

(2) Latency and Density. The bigger the memory size, the longer it takes to index the memory cell. And SRAM has low latency, but low density as well. DRAM has longer latency, but higher density.

回复
相关推荐
发帖
非技术区
创建于2007-09-28

1056

社区成员

硬件/嵌入开发 非技术区
申请成为版主
帖子事件
创建了帖子
2011-06-21 02:46
社区公告
暂无公告