TBD datasheet(70/80 Pages) FREESCALE

70 / 80 page

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

Hardware Design Considerations

Freescale Semiconductor

3.4.4

Ethernet Related Pins

3.4.4.1

Ethernet Controller 1 (GE1) Related Pins

Note:

Table 62 and Table 63 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.

3.4.4.1.1

GE1 Interface Is Not Used

Table 62 assumes that the GE1 signals are not used for any purpose (including any multiplexed functions) and that VDDGE1 is

tied to GND.

3.4.4.1.2

Subset of GE1 Pins Required

When only a subset of the whole GE1 interface is used, such as for RMII, the unused GE1 pins should be connected as described

in Table 63. This table assumes that the unused GE1 pins are not used for any purpose (including any multiplexed function) and

that VDDGE1 is tied to either 2.5 V or 3.3 V.

Table 62. Connectivity of GE1 Related Pins When the GE1 Interface Is Not Used

Signal Name

Pin Connection

GE1_COL

GE1_CRS

GE1_RD[0–4]

GE1_RX_ER

GE1_RX_CLK

GE1_RX_DV

GE1_SGMII_RX

GNDSXC

GE1_SGMII_RX

GNDSXC

GE1_SGMII_TX

GE1_TD[0–4]

GE1_TX_CLK

GE1_TX_EN

GE1_TX_ER

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

Signal Name

Pin Connection

GE1_COL

GND

GE1_CRS

GND

GE1_RD[0–3]

GND

GE1_RX_ER

GND

GE1_RX_CLK

GND

GE1_RX_DV

GND

GE1_SGMII_RX

GNDSXC

GE1_SGMII_RX

GNDSXC

GE1_SGMII_TX

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