快速以太网10/100多端口收发器，串行MII - LXT9762 / 9782

科幻居雷什

1

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

20

21

22

23

24

25

26

27

28

29

30

31

32

33

34

35

36

37

38

39

40

41

42

43

LXT 9782框图.............................................. ........................................ 9

LXT9782HC （ PQFP ）初步引脚分配........................................... 0.10

LXT9782BC （ PBGA ）初步引脚分配........................................... 0.11

LXT9762HC （ PQFP ）初步引脚分配........................................... 0.12

LXT97x2接口................................................ ............................................ 21

端口地址方案............................................... .......................................... 23

管理接口读取帧结构............................................. ...... 23

管理接口写入帧结构............................................. ...... 24

中断逻辑....................................................................................................24

初始化序列................................................ ....................................... 26

硬件控制设置............................................... .................................. 27

链路建立过程............................................... ................................ 29

简体SMII应用框图.............................................. .................... 30

100Mbps的串行MII数据流............................................. .............................. 31

串行MII发送同步.............................................. .................... 32

环回Paths...................................................................................................33

串行MII接收同步.............................................. ...................... 33

100BASE -X帧格式............................................. .................................. 34

协议子层................................................ ............................................. 36

串行LED Streams.............................................................................................42

LED脉冲展宽............................................... ........................................... 43

快速状态寄存器............................................... ........................................... 44

电源和地连接............................................. ............... 49

典型的双绞线接口............................................. ............................... 50

典型的光纤接口............................................... ......................................... 51

典型的串行LED接口.............................................. .................................. 52

MII同步Timing...................................................................................................56

100BASE -TX接收时序............................................. ................................ 56

SMII输出延迟测试设置............................................. ............................... 57

100BASE -TX发送时序............................................. ............................... 57

100BASE- FX接收时序............................................. ................................ 58

100BASE- FX发送时序............................................. ............................... 58

10BASE -T接收时序............................................. ..................................... 59

10BASE -T发送时序............................................. .................................... 59

自动协商和快速链路脉冲时序.......................................... .......... 60

快速链路脉冲时序.............................................. ......................................... 60

MDIO写时序（ MDIO由源MAC） ......................................... ........... 61

MDIO读时序（ MDIO来源由PHY ） ......................................... ........... 61

上电时序.............................................. .................................................. 62

复位和掉电恢复时序........................................... .............. 62

PHY标识符位映射.............................................. .................................... 68

LXT97x2 PQFP封装规格.............................................. ................. 77

LXT97x2 PBGA封装规格.............................................. ................. 78

数据表

5