数据手册
3
gigabit ethernet transceiver — lxt1000
内容
1.0 球 assignments 和 信号 描述
...................................................12
2.0 函数的 描述
...........................................................................................20
2.1 介绍..........................................................................................................20
2.1.1 网络 接口 ...................................................................................20
2.1.2 mac 接口 ........................................................................................20
2.1.3 mdio/mdc 接口 (管理) .....................................................20
2.1.4 硬件 控制 接口 ....................................................................21
2.1.5 jtag boundary scan 接口..............................................................21
2.1.6 initialization.............................................................................................21
2.1.7 Link.........................................................................................................21
2.1.8 自动 negotiation.....................................................................................21
2.2 lxt1000 产品 .........................................................................................21
2.3 接口 描述..........................................................................................24
2.3.1 网络 接口 ...................................................................................24
2.3.1.1 mdi/mdix 配置 ...........................................................24
2.3.2 mac 数据 接口................................................................................25
2.3.2.1 模式 的 运作...................................................................25
2.3.2.2 gmii 模式 (1000 根基-t) .......................................................27
2.3.2.3 mii 模式 (10/100base-t) ........................................................27
2.3.2.4 串行 模式 (10base-t)...........................................................27
2.3.3 tbi 配置 (1000base-t 仅有的)...................................................28
2.3.4 tbi 交流 在 mac 和 phy ........................................29
2.3.4.1 transmit 模式
–
数据 交通量 从 mac 至 phy ......................30
2.3.4.2 receive 模式
–
数据 交通量 从 phy 至 mac .......................30
2.3.5 mac 数据 接口 控制 ...................................................................31
2.3.6 mdio/mdc 管理 接口........................................................31
2.3.6.1 中断 ...................................................................................32
2.3.7 硬件 控制 接口 ....................................................................33
2.3.8 快 状态 接口 ............................................................................34
2.3.9 led 功能........................................................................................35
2.3.9.1 link 向上 ......................................................................................35
2.3.9.2 link 向下..................................................................................35
2.3.9.3 led 选项 ..............................................................................36
2.3.9.4 phy 地址 determination .....................................................36
2.3.10 jtag boundary scan 接口..............................................................37
2.3.10.1state 机器 ...........................................................................37
2.3.10.2instruction 寄存器 ...................................................................37
2.3.10.3boundary scan 寄存器 ...........................................................37
2.4 initialization..........................................................................................................38
2.4.1 电源-向上 ...............................................................................................38
2.4.2 硬件 重置 .....................................................................................38
2.4.3 软件 重置.......................................................................................38
2.4.4 硬件 电源-向下 ..........................................................................38
2.4.5 软件 电源-向下............................................................................38
2.4.6 determining link 状态 ...........................................................................39
2.4.6.1 false link ..................................................................................39
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