参数资料
型号: TS-MAC-SC-UT4
厂商: Lattice Semiconductor Corporation
文件页数: 37/66页
文件大小: 0K
描述: SITE LICENSE ETH MAC TRI SC/SCM
标准包装: 1
系列: *
其它名称: TSMACSCUT4
Lattice Semiconductor
Functional Description
MII Transmit and Receive Operations (10/100 Mode)
On the transmit side, txd and tx_en are driven synchronous to the gtx_clk. tx_er is asserted to indicate that the
frame being transmitted has an error.
On the receive interface, rxd and rx_en are sampled on the rising edge of rx_clk. An error in the frame is indicated
when rx_er is high when sampled on the rising clock edge.
col and crs are asynchronous signals, useful in the half-duplex mode only.
Figure 2-20. MII Transmit and Receive Operations
tx_clk
tx_en
txd[0:3]
col
crs
tx_er
rx_clk
rx_en
rxd[0:3]
rx_er
IPUG51_03.0, December 2010
VALID FRAME DATA
FRAME WITHOUT
COLLISION
VALID FRAME DATA
FRAME WITHOUT
ERROR
37
VALID FRAME DATA
FRAME WITH
COLLISION
VALID FRAME DATA
FRAME WITH
ERROR
Tri-Speed Ethernet MAC User’s Guide
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