CX82100-12 参数 Datasheet PDF下载

CX82100家庭网络处理器数据手册

2

CX82100 HNP硬件接口....................................................................................................... 2-1

2.1

CX82100 HNP硬件接口信号..................................................................................................................2-1

2.1.1

CX82100-11 / -12 / -51 / -52信号接口和引脚分配................................. ................................. 2-1

2.1.2

CX82100-41 / -42信号接口和引脚分配....................................... ........................................ 2-1

2.1.3

CX82100 HNP信号定义.................................................................................................................2-1

CX82100 HNP电气和环境Specifications........................................................................................2-17

2.2.1

直流电气特性......................................................................................................................2-17

2.2.2

工作条件，绝对最大额定值，以及功耗........................................ 2-18 ....

可选的GPIO和主机信号用法.......................................................................................................................2-19

接口时序和Waveforms...............................................................................................................................2-21

2.4.1

外部存储器接口(SDRAM).........................................................................................................2-21

2.4.2

主机接口时序................................................................................................................................2-21

2.4.3

EMAC接口时序..............................................................................................................................2-21

2.4.4

USB接口Timing.................................................................................................................................2-21

2.4.5

GPIO接口时序...............................................................................................................................2-21

2.4.6

中断时序........................................................................................................................................2-22

2.4.7

时钟复位Timing....................................................................................................................................2-22

2.4.8

复位时序.............................................................................................................................................2-22

封装尺寸.................................................................................................................................................2-23

HNP记忆Map.......................................................................................................................................................3-1

出发地址......................................................................................................................................................3-3

3.2.1

ARM向量Table........................................................................................................................................3-3

Endianness..................................................................................................................................................................3-4

引导程序...........................................................................................................................................................3-4

DMA通道定义..............................................................................................................................................4-1

DMA请求和数据Transfer................................................................................................................................4-1

控制寄存器........................................................................................................................................................4-2

DMAC寄存器映射......................................................................................................................................4-3

控制寄存器Formats.............................................................................................................................................4-4

4.5.1

DMAC ×电流指针1 （ DMAC_ { X} _Ptr1 ） ..................................... .................................................. 4-4 .......

4.5.2

DMAC X间接/返回指针1 (DMAC_{x}_Ptr2)....................................................................................4-4

4.5.3

DMAC X缓冲区大小计数器1 (DMAC_{x}_Cnt1).........................................................................................4-4

4.5.4

DMAC X缓冲区大小计数器2 (DMAC_{x}_Cnt2).........................................................................................4-4

4.5.5

DMAC X缓冲区大小计数器3 (DMAC_{x}_Cnt3).........................................................................................4-5

地址生成的三种基本模式..................................................................................................................4-6

4.6.1

源或目标模式........................................................................................................................4-6

4.6.2

循环缓冲区Modes..................................................................................................................................4-6

直接循环缓冲...........................................................................................................................4-6

4.6.3

间接圆形指针Table..............................................................................................................4-7

链接列表模式.........................................................................................................................................4-9

嵌入式尾链表描述方式............................................ ............................................ 4-9

间接/表链表描述方式........................................... ............................................. 4-12

2.2

2.3

2.4

2.5

3

HNP内存架构................................................................................................................... 3-1

3.1

3.2

3.3

3.4

4

DMAC接口Description................................................................................................................. 4-1

4.1

4.2

4.3

4.4

4.5

4.6

iv

科胜讯专有和机密信息

101306C