目录

第19章

MMC / SD / SDIO控制器

（续）

产品特点.............................................................................................................................................19-1

框图....................................................................................................................................19-1

SD操作......................................................................................................................................19-2

SDIO Operation...................................................................................................................................19-3

SDI特殊寄存器..........................................................................................................................19-4

SDI控制寄存器(SDICON).....................................................................................................19-4

SDI波特率预分频寄存器（ SDIPRE ） .......................................... ....................................... 19-4

SDI命令参数寄存器（ SDICmdArg ） ........................................... .................................. 19-5

SDI命令控制寄存器（ SDICmdCon ） ........................................... ..................................... 19-5

SDI命令状态寄存器（ SDICmdSta ） ........................................... ...................................... 19-6

SDI响应寄存器0 （ SDIRSP0 ） ........................................... ................................................. 19 -6

SDI响应寄存器1 （ SDIRSP1 ） ........................................... ................................................. 19 -6

SDI响应寄存器2 （ SDIRSP2 ） ........................................... ................................................. 19 -7

SDI响应寄存器3 （ SDIRSP3 ） ........................................... ................................................. 19 -7

SDI数据/忙定时器寄存器（ SDIDTimer ） ......................................... ......................................... 19-7

SDI块大小注册(SDIBSize)..............................................................................................19-7

SDI数据控制寄存器（ SDIDatCon ） ........................................... .............................................. 19-8

SDI数据将保持计数器寄存器（ ADIDatCnt ） .......................................... ................................... 19-9

SDI数据状态寄存器(ADIDatSta)...........................................................................................19-9

SDI FIFO状态寄存器(SDIFSTA)............................................................................................19-10

SDI中断屏蔽寄存器(SDIIntMsk)........................................................................................19-11

SDI数据寄存器（ SDIDAT ） .........................................................................................................19-12

第20章

IIC总线接口

概观.............................................................................................................................................20-1

IIC总线Interface..........................................................................................................................20-3

启动和停止条件............................................................................................................20-3

数据传输格式...................................................................................................................20-4

ACK信号Transmission.............................................................................................................20-5

读写操作..................................................................................................................20-6

总线仲裁Procedures...........................................................................................................20-6

退出Conditions..........................................................................................................................20-6

配置IIC总线......................................................................................................................20-6

运营在各模式下的流程图............................................ ............................................. 20-7

IIC总线接口特殊寄存器.......................................................................................................20-11

多主IIC总线控制（ IICCON ）注册....................................... ....................................... 20-11

多主IIC总线控制/状态（ IICSTAT ）注册..................................... .............................. 20-12

多主IIC总线地址（ IICADD ）注册....................................... ...................................... 20-13

多主IIC总线发送/接收数据移位（ IICDS ）注册................................... ................ 20-13

多主IIC总线线路CONTRO L（ IICLC ）注册..................................... ..................................... 20-14

S3C2440A微控制器

十七