7.4

7.5

7.6

7.7

7.3.1存储器地址寄存器（ MAR ） ..............................................................................................................181

7.3.2 I / O地址寄存器(IOAR)......................................................................................................................181

7.3.3执行传输计数寄存器(ETCR)................................................................................................... 181

7.3.4 DMA控制寄存器(DMACR)..............................................................................................................183

7.3.5带DMA控制寄存器(DMABCR)..................................................................................................186

寄存器说明（ 3 ） ..........................................................................................................................................190

7.4.1 DMA的写使能寄存器（ DMAWER ） ........................................ .................................................. 190 .......

7.4.2 DMA终端控制寄存器(DMATCR)............................................................................................192

7.4.3模块停止控制寄存器（ MSTPCR ） ........................................ .................................................. 193 .......

手术..................................................................................................................................................................194

7.5.1传输模式........................................................................................................................................... 194

7.5.2顺序Mode..........................................................................................................................................196

7.5.3空闲Mode..................................................................................................................................................... 199

7.5.4重复模式............................................................................................................................................... 201

7.5.5单地址模式..................................................................................................................................204

7.5.6正常Mode............................................................................................................................................... 207

7.5.7块传输Mode................................................................................................................................... 210

7.5.8 DMAC启动源......................................................................................................................... 215

7.5.9基本DMAC的总线周期............................................................................................................................217

7.5.10 DMAC的总线周期（双地址模式） ..................................................................................................218

7.5.11 DMAC的总线周期（单地址模式） ....................................... .................................................. ...... 226

7.5.12写入数据缓冲区Function......................................................................................................................... 230

7.5.13 DMAC多通道操作............................................................................................................... 231

外部总线请求，刷新周期之间的关系7.5.14的DTC和DMAC ............................... 232

7.5.15 NMI中断和DMAC......................................................................................................................... 233

DMAC的7.5.16强行终止Operation................................................................................................... 234

7.5.17结算全地址模式....................................................................................................................... 235

Interrupts................................................................................................................................................................... 236

使用注意事项..............................................................................................................................................................237

第8章数据传送控制器...................................................................................................241

8.1

Overview................................................................................................................................................................... 241

8.1.1产品特点....................................................................................................................................................... 241

8.1.2座Diagram............................................................................................................................................. 242

8.1.3寄存器配置................................................................................................................................243

注册Descriptions................................................................................................................................................244

8.2.1 DTC模式寄存器(MRA)....................................................................................................................244

8.2.2 DTC模式寄存器B（ MRB ） ....................................................................................................................245

8.2.3 DTC源地址寄存器(SAR)......................................................................................................... 246

8.2.4 DTC目标地址寄存器（ DAR ） ........................................ .................................................. 246 .......

8.2.5 DTC传输计数寄存器A（ CRA ） ..................................................................................................... 246

8.2.6 DTC传输计数寄存器B （ CRB ） ......................................................................................................246

8.2.7 DTC使能寄存器（ DTCER ） ................................................................................................................247

8.2.8 DTC向量寄存器（ DTVECR ） ............................................................................................................... 247

8.2.9模块停止控制寄存器（ MSTPCR ） ........................................ .................................................. 248 .......

手术..................................................................................................................................................................249

8.3.1概述..................................................................................................................................................... 249

8.3.2激活Sources....................................................................................................................................... 251

8.3.3 DTC向量表....................................................................................................................................... 252

8.3.4位置登记信息的地址空间........................................ ........................................... 255

8.3.5正常Mode............................................................................................................................................... 256

8.3.6重复模式............................................................................................................................................... 257

二十四的Rev.6.00 Oct.28.2004十三页

REJ09B0138-0600H

8.2

8.3