x s3c2440a 微控制器
表格 的 内容(持续)
chapter 7 时钟 &放大; 电源 管理
Overview .............................................................................................................................................7-1
函数的 描述 .........................................................................................................................7-2
时钟 architecture.......................................................................................................................7-2
时钟 源 选择................................................................................................................7-2
阶段 锁 循环 (pll) ............................................................................................................7-4
时钟 控制 逻辑 .....................................................................................................................7-6
电源 管理 .....................................................................................................................7-10
时钟 发生器 &放大; 电源 管理 特定的 寄存器 ........................................................................7-20
锁 时间 计数 寄存器 (locktime).........................................................................................7-20
pll 控制 寄存器 (mpllcon &放大; upllcon)..............................................................................7-21
pll 值 选择 表格 ...........................................................................................................7-21
时钟 控制 寄存器 (clkcon).................................................................................................7-22
时钟 慢 控制 (clkslow) 寄存器 ......................................................................................7-23
时钟 分隔物 控制 (clkdivn) 寄存器......................................................................................7-24
camera 时钟 分隔物 (camdivn) 寄存器....................................................................................7-25
chapter 8 DMA
Overview .............................................................................................................................................8-1
dma 要求 来源 ........................................................................................................................8-2
dma 运作 ...................................................................................................................................8-2
外部 dma dreq/dack 协议 ............................................................................................8-3
Examples ...........................................................................................................................................8-6
dma 特定的 寄存器 ........................................................................................................................8-7
dma 最初的 源 (disrc) 寄存器.............................................................................................8-7
dma 最初的 源 控制 (disrcc) 寄存器 ...............................................................................8-7
dma 最初的 destination (didst) 寄存器 .......................................................................................8-8
dma 最初的 destination 控制 (didstc) 寄存器..........................................................................8-8
dma 控制 (dcon) 寄存器......................................................................................................8-9
dma 状态 (dstat) 寄存器......................................................................................................8-12
dma 电流 源 (dcsrc) 寄存器 ........................................................................................8-13
电流 destination (dcdst) 寄存器 ...........................................................................................8-13
dma 掩饰 触发 (dmasktrig) 寄存器....................................................................................8-14
: 点此下载
