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Hardware Preparation
2.2.10 FCC2 Ethernet Port Mode—MII/RMII
The Ethernet PHY on FCC2 is set by default to 100Base-Tx full duplex, and can be
configured to operate in MII or RMII interface. The selection is done by setting JP10. When
a jumper is placed between positions 1 - 2 of JP10, the MII interface is enabled. When a
jumper is placed between positions 2–3 of JP10, the RMII interface is enabled (see
Figure 2-8).
JP10
JP10
1
2 3
MII Mode
1
2 3
RMII Mode
Factory Setup
Figure 2-8. FCC2 Ethernet Mode Selection
NOTE
To cause the mode change, set JP10 while the board is
powered-off.
2.2.11 USB Speed Selection
The USB port supports two speeds, 12 Mbits/s and 1.5 Mbits/s. The selection is software-
controlled in the BCSR. At power-on reset, the default selection is 12Mbits/s.
2.2.12 USB Mode Selection
The USB port supports two modes, host and slave. The selection is done by setting JP8.
When a jumper is placed between positions 1–2 of JP8, the slave mode is enabled. When a
jumper is placed between positions 2–3 of JP8, the host mode is enabled (see Figure 2-9).
MPC8272ADS User Guide
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