数据手册
5
3.3v 双-速 快 ethernet transceiver 数据手册
—
LXT972A
计算数量
1 lxt972a 块 图解 .......................................................................................9
2 lxt972a 64-管脚 lqfp assignments ..................................................................10
3 管理 接口 读 框架 结构...................................................19
4 管理 接口 写 框架 结构 ...................................................19
5 中断 逻辑 ....................................................................................................20
6 initialization sequence .......................................................................................22
7 硬件 配置 settings .......................................................................23
8 link establishment overview .............................................................................25
9 10base-t clocking ............................................................................................27
10 100base-x clocking .........................................................................................27
11 link 向下 时钟 转变................................................................................27
12 loopback paths ..................................................................................................28
13 100base-x 框架 format ................................................................................29
14 100base-tx 数据 path .....................................................................................29
15 100base-tx reception 和 非 errors ..............................................................30
16 100base-tx reception 和 invalid 标识 .....................................................30
17 100base-tx 传递 和 非 errors .......................................................31
18 100base-tx 传递 和 collision .........................................................31
19 协议 sublayers .............................................................................................32
20 led 脉冲波 stretching .........................................................................................38
21 典型 twisted-一双 接口 - 转变 ...............................................................41
22 典型 twisted-一双 接口 - nic ...................................................................42
23 典型 mii 接口 ...........................................................................................43
24 100base-tx receive 定时 - 4b 模式 ...........................................................47
25 100base-tx transmit 定时 - 4b 模式 ..........................................................48
26 10base-t receive 定时 .................................................................................49
27 10base-t transmit 定时 ................................................................................50
28 10base-t jabber 和 unjabber 定时 ............................................................51
29 10base-t sqe (heartbeat) 定时...................................................................51
30 自动 negotiation 和 快 link 脉冲波 定时 ....................................................52
31 快 link 脉冲波 定时 .......................................................................................52
32 mdio 输入 定时 .............................................................................................53
33 mdio 输出 定时 ..........................................................................................53
34 电源-向上 定时 ................................................................................................54
35 重置 脉冲波 宽度 和 恢复 定时 ........................................................54
36 phy identifier 位 mapping .................................................................................60
37 lxt972a lqfp 包装 规格............................................................70
Tables
1 lqfp numeric 管脚 列表.......................................................................................11
2 lxt972a mii 信号 描述........................................................................13
3 lxt972a 网络 接口 信号 描述 ................................................14
4 lxt972a miscellaneous 信号 描述......................................................14
5 lxt972a 电源 供应 信号 描述 ......................................................15
6 lxt972a jtag 测试 信号 描述 ...........................................................15
7 lxt972a led 信号 描述......................................................................15
8 硬件 配置 settings ........................................................................24
: 点此下载
