TBD datasheet(71/80 Pages) FREESCALE

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Hardware Design Considerations

MSC8144E Quad Core Digital Signal Processor Data Sheet, Rev. 6

Freescale Semiconductor

3.4.4.2

Ethernet Controller 2 (GE2) Related Pins

Note:

Table 64 and Table 66 assume that the alternate function of the specified pin is not used. If the alternate function is

used, connect the pin as required to support that function.

3.4.4.2.1

GE2 interface Is Not Used

Table 64 assumes that the GE2 pins are not used for any purpose (including any multiplexed function) and that VDDGE2 is tied

to GND.

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 65. 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 B.

GE1_SGMII_TX

GE1_TD[0-3]

GE1_TX_CLK

GND

GE1_TX_EN

GE1_TX_ER

Table 64. Connectivity of GE2 Related Pins When the GE2 Interface Is Not Used

Signal Name

Pin Connection

GE2_RD[0-3]

GE2_RX_CLK

GE2_RX_DV

GE2_RX_ER

GE2_SGMII_RX

GNDSXC

GE2_SGMII_RX

GNDSXC

GE2_SGMII_TX

GE2_TCK

GE2_TD[0–3]

GE2_TX_EN

Table 65. 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

Table 63. Connectivity of GE1 Related Pins When only a subset of the GE1 Interface Is required (continued)

Signal Name

Pin Connection

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