參數(shù)資料
型號： MSC8144ESVT1000B
廠商： FREESCALE SEMICONDUCTOR INC
元件分類： 數(shù)字信號處理
英文描述： 133 MHz, OTHER DSP, PBGA783
封裝： 29 X 29 MM, LEAD FREE, PLASTIC, FCPBGA-783
文件頁數(shù)： 70/80頁
文件大?。?/td> 1251K
代理商： MSC8144ESVT1000B
MSC8144E Quad Core Digital Signal Processor Data Sheet, Rev. 14
Hardware Design Considerations
Freescale Semiconductor
72
3.4.4.2.2
Subset of GE2 Pins Required
When only a subset of the whole GE2 interface is used, such as for RMII, the unused GE2 pins should be connected as described
in Table 60. The table assumes that the unused GE2 pins are not used for any purpose (including any multiplexed functions)
and that VDDGE2 is tied to either 2.5 V or 3.3 V.
3.4.4.3
GE1 and GE2 Management Pins
GE_MDC and GE_MDIO pins should be connected as required by the specified protocol. If neither GE1 nor GE2 is used (that
is, VDDGE2 is connected to GND), Table 61 lists the recommended management pin connections.
GE2_TD[0–3]
Nc
GE2_TX_EN
NC
Table 60. Connectivity of GE1 Related Pins When only a subset of the GE1 Interface Is required
Signal Name
Pin Connection
GE2_RD[0-3]
GND
GE2_RX_CLK
GND
GE2_RX_DV
GND
GE2_RX_ER
GND
GE2_SGMII_RX
GNDSXC
GE2_SGMII_RX
GNDSXC
GE2_SGMII_TX
NC
GE2_SGMII_TX
NC
GE2_TCK
NC
GE2_TD[0–3]
NC
GE2_TX_EN
NC
Table 61. Connectivity of GE Management Pins When GE1 and GE2 Are Not Used
Signal Name
Pin Connection
GE_MDC
NC
GE_MDIO
NC
Table 59. Connectivity of GE2 Related Pins When the GE2 Interface Is Not Used (continued)
Signal Name
Pin Connection
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