6.2.1.2
GMAC GMII/TBI Connection Diagrams (Host-side only)
Host-Side PHY
4450
hx_col
hx_crs
hx_ctrl_1
hx_ctrl_0
hx_clk_2
hx_clk_1
COL
CRS
hx_gtxclk
hx_rxclk
GTX_CLK
RX_CLK
hx_rxer
hx_bus1[9]
hx_bus1[8]
RX_ER
RX_EN
RXD[7:0]
TX_ER
hx_rxdv
hx_rxd[7:0]
hx_txer
hx_bus1[7:0]
hx_bus0[9]
hx_bus0[8]
hx_bus0[7:0]
hx_clk_0
hx_txen
TX_EN
hx_txd[7:0]
hx_txclk
TXD[7:0]
TX_CLK
Note
1. hx = h0 or h1.
Figure 6-3. GMII MAC-Mode
\
4450
Host-Side PHY
col(N/C)
hx_ctrl_1
hx_sigdet
hx_ctrl_0
hx_clk_2
hx_clk_1
SIGDET
hx_txpmaclk
hx_rxpmaclk1
GTX_CLK
RX_CLK
hx_rxd9
hx_rxd8
hx_bus1[9]
hx_bus1[8]
hx_bus1[7:0]
hx_clk_0
RX_ER
RX_DV
RXD[7:0]
TX_CLK
TX_ER
hx_rxd[7:0]
hx_rxpmaclk0
hx_txd9
hx_bus0[9]
hx_bus0[8]
hx_bus0[7:0]
hx_txd8
TX_EN
hx_txd[7:0]
TXD[7:0]
Note
1. hx = h0 or h1.
2. col is internally terminated with a pulldown resistor.
Figure 6-4. TBI MAC-Mode
4450 – Data Sheet, DS-0131-06
Page35
Hifn Confidential
EXAR [ EXAR CORPORATION ]
