数据 薄板 e0031n30
8
µ
µµ
µ
pd45128441, 45128841, 45128163
内容
1. 输入 / 输出 管脚 函数 ........................................................................................................... 10
2. commands ...................................................................................................................................... 11
3. simplified 状态 图解 ............................................................................................................... 14
4. 真实 表格 ...................................................................................................................................... 15
4.1 command 真实 表格 ............................................................................................................................ 15
4.2 dqm 真实 表格 ..................................................................................................................................... 15
4.3 cke 真实 表格 ...................................................................................................................................... 15
4.4 operative command 表格.................................................................................................................... 16
4.5 command 真实 表格 为 cke............................................................................................................. 19
5. initialization .................................................................................................................................... 20
6. 程序编制 这 模式 寄存器 ................................................................................................. 21
7. 模式 寄存器 ................................................................................................................................ 22
7.1 burst 长度 和 sequence .................................................................................................................. 23
8. 地址 位 的 bank-选择 和 precharge ............................................................................... 24
9. precharge ........................................................................................................................................ 25
10. 自动 precharge ............................................................................................................................... 26
10.1 读 和 自动 precharge.................................................................................................................. 26
10.2 写 和 自动 precharge .................................................................................................................. 27
11. 读 / 写 command 间隔.................................................................................................... 28
11.1 读 至 读 command 间隔 ....................................................................................................... 28
11.2 写 至 写 command 间隔.......................................................................................................28
11.3 写 至 读 command 间隔 ....................................................................................................... 29
11.4 读 至 写 command 间隔 ....................................................................................................... 30
12. burst 末端 .......................................................................................................................... 31
12.1 burst 停止 command .......................................................................................................................... 31
12.2 precharge 末端 .......................................................................................................................32
12.2.1 precharge 末端 在 读 循环 ...................................................................................32
12.2.2 precharge 末端 在 写 循环 .................................................................................33
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