
图的访问时序6.21例具有三态地址栏输出循环
( RAST = 0).............................................................................................................
图的访问时序时6.22例
RAS
信号变低,从开始
的t
r
国家( CAST = 0 ) ............................................ ...............................................
时序图6.23为例用一个行地址输出维护状态
( RAST = 0, CAST = 0) ......................................... .................................................
时序图6.24实例与两个国家的预充电周期( RAST = 0 , CAST = 0 ) ......
图中等待状态插入时间( 2 - State列地址输出) 6.25实例........
图中等待状态插入时序( 3 - State列地址输出) 6.26例.........
图6.27 2 - CAS控制时序(高字节写入访问: RAST = 0 , CAST = 0 ) .........
图2 -CAS DRAM连接6.28例......................................... ........................
图6.29操作时序在快速页模式( RAST = 0 , CAST = 0 ) ..............................
图6.30操作时序在快速页模式( RAST = 0 , CAST = 1 ) ..............................
图中的操作时序6.31例RAS暂停模式( RAST = 0 , CAST = 0 ) ........
图中的操作时序6.32例RAS模式( RAST = 0 , CAST = 0 ) .............
图6.33 RTCNT Operation..................................................................................................
图6.34比较匹配时序............................................. ............................................
图6.35 CBR刷新时间............................................. .................................................
图6.36 CBR刷新时间( RCW1 = 0 , RCW0 = 1 , RLW1 = 0 , RLW0 = 0 ) ................
图的CBR刷新时间( CBRM = 1 ) 6.37实例...................................... ...............
图6.38自刷新时间............................................ .................................................. 。
时序图6.39为例,当自动刷新后,预充电时间延长
2国..............................................................................................................
图6.40为例
DACK
输出时序时, DDS = 1 ( RAST = 0 , CAST = 0 ) .........
图6.41为例
DACK
输出时序时, DDS = 0 ( RAST = 0 , CAST = 1 ) .........
图突发ROM访问时序( ASTN = 1 , 2 ,国家突发周期)为6.42例............
图突发ROM访问时序( ASTN = 0 , 1 ,国家突发周期)的6.43举例............
图6.44 xample的空闲周期操作(在不同区域的连续读取) ..............
图的空闲周期操作6.45例(后读取写入) ..................................... .......
图的空闲周期操作6.46示例(写后读) ............ .......
图片选( CS)和读( RD )的6.47关系.................................... .....
图的外部读( CAST = 0 )后, DRAM完全访问权限6.48例.........................
图的空闲周期运行6.49例RAS暂停模式(连续读取
在不同地区) ( IDLC = 0 , RAST = 0 , CAST = 0 ) ................................. .........
图的空闲周期运行6.50例RAS暂停模式(在读写)
( IDLC = 0, RAST = 0, CAST = 0) ..................................... ....................................
图的空闲周期操作6.51例DRAM访问后(连续读取中
不同地区) ( IDLC = 0 , RAST = 0 , CAST = 0 ) ................................. .................................
图的空闲周期操作6.52例DRAM访问后(后读写)
( IDLC = 0, RAST = 0, CAST = 0) ..................................... ....................................
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牧师5.00 2006年8月2日第LIV的三十七