No.71808 作者:qzc001617 邮件:qzc001617@163.com ID:26817 登陆:4次 文章数:4篇 最后登陆IP:116.25.49.152 最后登陆:2009/8/27 22:23:03 注册:2004/10/18 16:56:34 财富:115 发帖时间:2005/1/20 14:11:03 发贴者IP:218.18.200.5 标题:qzc001617:[原创]CAS是什么意思? 摘要:No.71808[原创]CAS是什么意思? 下面是一种arm芯片的说明书。请教这句是何意思——Programmable CAS latency。 FEATURES 16 Bits wide external bus interface (two access requires for each word) Supports 16/64/128/256Mbit device Supports 2~64 Mbytes in up to two devices (the size of each memory device may be different) Programmable CAS latency Supports 2/4 banks with page lengths of 256 ......