CX82100-42 参数 Datasheet PDF下载

CX82100家庭网络处理器数据手册

7

以太网媒体访问控制接口说明............................................ .............................. 7-1

7.1

7.2

7.3

7.4

7.5

7.6

7.7

MAC帧格式.....................................................................................................................................................7-2

参数值用来实施............................................................................................................7-3

EMAC功能特点...........................................................................................................................................7-4

EMAC架构......................................................................................................................................................7-6

媒体独立接口（MII ） ..............................................................................................................................7-7

EMAC Interrupts..........................................................................................................................................................7-8

TMAC架构......................................................................................................................................................7-9

7.7.1

发送帧Structure............................................................................................................................7-9

7.7.2

发送Descriptor...................................................................................................................................7-11

7.7.3

传输状态（ TSTAT ） ...........................................................................................................................7-12

7.7.4

发送DMA序列Operation...................................................................................................7-14

RMAC Architecture....................................................................................................................................................7-15

7.8.1

支持无效的MAC帧的检测.......................................... ............................................ 7-15

条件1 ........................................................................................................................................7-15

条件2 ........................................................................................................................................7-15

7.8.2

7.8.3

7.8.4

条件3 ........................................................................................................................................7-15

支持接待无争............................................ .............................................. 7-15

支持的前台，争............................................ .................................................. .7-16

地址Filtering........................................................................................................................................7-16

安装架......................................................................................................................................7-16

完美地址Filtering....................................................................................................................7-16

一个完善的地址过滤设置框架示例.......................................... ................................ 7-17

不完善的地址Filtering................................................................................................................7-18

一个不完全地址过滤设置框架示例.......................................... .......................... 7-20

地址过滤模式....................................................................................................................7-22

7.8.5

接收状态处理............................................................................................................................7-23

7.8.6

接收DMA操作顺序.......................................................................................................7-26

7线式串行接口（ 7 - WS ） ..................................................................................................................................7-27

EMAC寄存器映射....................................................................................................................................7-28

EMAC寄存器........................................................................................................................................................7-29

7.11.1

EMAC X源/目标DMA数据寄存器（ E_DMA_1 ： 0x00310000和E_DMA_2 ：

0x00320000).............................................................................................................................................7-29

7.11.2

EMAC X目的DMA数据寄存器（ ET_DMA_1 ： 0x00310020和ET_DMA_2 ： 0x00320020 ） ........... 7-29

7.11.3

EMAC X网络访问寄存器（ E_NA_1 ： 0x00310004和E_NA_2 ： 0x00320004 ） .............................. 7-30

7.11.4

EMAC x状态寄存器（ E_Stat_1 ： 0x00310008和E_Stat_2 ： 0x00320008 ） ..................................... 7-33 .....

7.11.5

EMAC X接收器最后分组寄存器（ E_LP_1 ： 0x00310010和E_LP_2 ： 0x00320010 ） ........................ 7-34

7.11.6

EMAC x中断使能寄存器（ E_IE_1 ： 0x0031000C和E_IE_2 ： 0x0032000C ） ................................. 7-35

7.11.7

EMAC X MII管理接口寄存器（ E_MII_1 ： 0x00310018和E_MII_2 ： 0x00320018 ） ............. 7-36

UDC数据路径............................................................................................................................................................8-3

8.1.1

USB传输数据路径（终点 - Channel)...........................................................................................8-3

8.1.2

USB接收数据路径（端点OUT通道） ......................................... ................................................ 8 4

USB数据流............................................................................................................................................................8-5

7.8

7.9

7.10

7.11

8

USB接口Description.................................................................................................................... 8-1

8.1

8.2

vi

科胜讯专有和机密信息

101306C