DM9621
USB2.0快速以太网控制器
6.14节电控制寄存器（ PSCR ） - 1DH ........................................ .............. 38
7.功能description........................................................................................................ 39
USB 7.1功能说明.............................................. ........................................ 39
7.1.1 USB标准命令............................................ ................................... 39
7.1.2供应商的命令............................................. ............................................ 40
7.1.2.1注册类型............................................. ................................................. 40
7.1.2.2内存类型............................................. .................................................. 41
7.1.3接口0配置............................................ .................................... 42
7.1.4描述符值............................................. .............................................. 43
7.1.5描述符的字符串/ 1 /2/3是从EEPROM加载.................................. .. 48
7.2以太网功能说明.............................................. .................................. 49
7.2.1串行管理接口............................................ ............................. 49
7.2.2 100BASE-TX操作........................................... ........................................ 50
7.2.3 4B5B编码器............................................. .................................................. 。 50
7.2.4扰码....................................................................................................... 50
7.2.5并行到串行转换器........................................... .................................. 50
7.2.6 NRZ到NRZI编码器........................................... ......................................... 50
7.2.7 MLT - 3转换器........................................... ................................................. 50
7.2.8 MLT - 3驱动........................................... .................................................. ..... 50
7.2.9 4B5B码组............................................ .............................................. 51
7.2.10 100BASE-TX接收........................................... ....................................... 52
7.2.11信号检测............................................. .................................................. 。 52
7.2.12自适应均衡............................................. ...................................... 52
7.2.13 MLT- 3到NRZI解码......................................... ...................................... 52
7.2.14时钟恢复模块............................................ .................................... 52
7.2.15 NRZI到NRZ ............................................ .................................................. ... 52
7.2.16串行到并行............................................ ............................................... 52
7.2.17解扰器.............................................. .................................................. 。 52
7.2.18代码组对齐方式............................................ ..................................... 53
7.2.19 4B5B解码器............................................. ................................................. 53
7.2.20 10Base-T的操作........................................... .......................................... 53
7.2.21碰撞检测............................................. ........................................... 53
7.2.22载波侦听............................................. .................................................. 53
23年7月2日Auto-Negotiation........................................................................................... 53
初步
版本： DM9621 -14 - DS- P02
2011年2月23日
4
DAVICOM [ DAVICOM SEMICONDUCTOR, INC. ]
