参数资料
型号: E-1110
英文描述: E-1110 10/100/1000 Mbits/s Ethernet MAC preliminary technical manual 4/01
中文描述: 电子1110 10/100/1000 Mbits /秒以太网MAC初步的技术手册4 / 01
文件页数: 33/108页
文件大小: 577K
代理商: E-1110
2-20
Functional Description
2.1.5.3 TBI Mode
In the TBI mode of operation, the E-1110 PHY signals are mapped to
the TBI signals. However, the TBI clocks are derived from separate pins
as shown in Figure 2.4. The Gigabit MAC must interface to the GMII
signals that come from the PCS module when operating in the TBI mode,
as shown in the gure. The GMII signals hence have an additional level
of multiplexing apart from the PHY signals to accommodate the GMII
signals coming from the PCS module.
Figure 2.4
PHY Multiplexer Signal Mapping in TBI Mode
GMII_TXD[7:0]
GMII_TXEN
GMII_TXER
PCS_GMII_RCLK
PCS_GMII_RXD[7:0]
PCS_GMII_RXDV
PCS_GMII_RXER
PCS_GMII_COL
PCS_GMII_CRS
E1110_TXD[9:0]
E1110_TXCLK
E1110_RXD[9:0]
Fiber
GMII_TXCLK
PHY Mux
(TBI Mode)
PCS_TBI_TXD[9:0]
PCS_TBI_TCLK
PCS_TBI_RBCO
PCS_TBI_RBC1
PCS_TBI_RXD[9:0]
E1110_TBI_RXCLK
E1110_TBI_RXCLKN
PCS_GMII_TXD[7:0]
PCS_GMII_TXEN
PCS_GMII_TXER
PCS_GMII_TXCLK
GMII_RCLK
GMII_RXD[7:0]
GMII_RXDV
GMII_RXER
GMII_COL
GMII_CRS
Media
To
PCS
To
Gigabit
MAC
To
PCS
To
Gigabit
MAC
To
PCS
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