DS508PP5
版权 Cirrus 逻辑, 公司 2003
(所有 权利 保留)
3
EP7312
高-效能, 低-电源 系统 在 碎片
表格 的 contents
特性 ...........................................................................................................................................1
overview ...........................................................................................................................................1
特性
(内容) .......................................................................................................................................................2
OVERVIEW
(内容.) ......................................................................................................................................................2
描述 的 这 ep7312
’
s 组件, 符合实际, 和 接口 ....................................6
处理器 核心 - arm720t ..................................................................................................................................6
电源 管理 ..............................................................................................................................................6
maverickkey™ 唯一的 id......................................................................................................................................6
记忆 接口.................................................................................................................................................6
数字的 音频的 能力 .........................................................................................................................................7
普遍的 异步的 接受者/传输者 (uarts) .....................................................................................7
数字的 音频的 接口 (dai) ..................................................................................................................................7
codec 接口 ..................................................................................................................................................8
ssi2 接口........................................................................................................................................................8
同步的 串行 接口 ................................................................................................................................8
lcd 控制 .......................................................................................................................................................8
64-关键 keypad 接口 .......................................................................................................................................9
中断 控制 ................................................................................................................................................9
real-时间 时钟....................................................................................................................................................9
pll 和 clocking ..................................................................................................................................................9
直流-至-直流 转换器 接口 (pwm).................................................................................................................10
计时器 .................................................................................................................................................................10
一般 purpose 输入/输出 (gpio) ................................................................................................................10
硬件 debug 接口 ..................................................................................................................................10
led flasher ........................................................................................................................................................10
内部的 激励 只读存储器 ...............................................................................................................................................10
包装 ............................................................................................................................................................10
管脚 multiplexing ...................................................................................................................................................11
系统 设计 ....................................................................................................................................................12
电的 规格 ......................................................................................................13
绝对 最大 比率 .................................................................................................................................13
推荐 运行 情况 .................................................................................................................13
直流 特性 ..............................................................................................................................................13
timings ...............................................................................................................................................15
定时 图解 conventions ....................................................................................................................15
定时 情况 ......................................................................................................................................15
sdram 接口 ................................................................................................................................................16
sdram 加载 模式 寄存器 循环 ..........................................................................................................17
sdram burst 读 循环 .........................................................................................................................18
sdram burst 写 循环.........................................................................................................................19
sdram refresh 循环 ..............................................................................................................................20
静态的 记忆 .....................................................................................................................................................21
静态的 记忆 单独的 读 循环.............................................................................................................22
静态的 记忆 单独的 写 循环 .............................................................................................................23
静态的 记忆 burst 读 循环 ...............................................................................................................24
静态的 记忆 burst 写 循环 ...............................................................................................................25
ssi1 接口......................................................................................................................................................26
ssi2 接口......................................................................................................................................................27
lcd 接口 ......................................................................................................................................................28
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