MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
2-40 Freescale Semiconductor
2.3.3.0.12 External Data / Ethernet Transmit Enable / Calibration Data / GPIO
DATA[26]_FEC_TX_EN_CAL_DATA[10]_GPIO[54]
DATA[26]_FEC_TX_EN_CAL_DATA[10]_GPIO[54] has the external data bus as the primary signal
function. The FEC transmit enable signal is the first alternate function, and the calibration data function is
the second alternate function. This pin can also be used as a GPIO signal. The FEC and calibration signals
are mapped to the same ball, therefore either the FEC or calibration function can be used, but not both. The
FEC and calibration functions are not available on the MPC5554. This pin can be used as a GPIO signal.
2.3.3.0.13 External Data / Ethernet Transmit Data / Calibration Data / GPIO
DATA[27]_FEC_TXD[2]_CAL_DATA[11]_GPIO[55]
DATA[27]_FEC_TXD[2]_CAL_DATA[11]_GPIO[55] has the external data bus as the primary signal
function. The FEC transmit data signal is the first alternate function, and the calibration data function is
the second alternate function. This pin can also be used as a GPIO signal. The FEC and calibration signals
are mapped to the same ball, therefore either the FEC or calibration function can be used, but not both. The
FEC and calibration functions are not available on the MPC5554. This pin can be used as a GPIO signal.
2.3.3.0.14 External Data / Ethernet Transmit Data / Calibration Data / GPIO
DATA[28]_FEC_TXD[1]_CAL_DATA[12]_GPIO[56]
DATA[28]_FEC_TXD[1]_CAL_DATA[12]_GPIO[56] has the external data bus as the primary signal
function. The FEC transmit data signal is the first alternate function, and the calibration data function is
the second alternate function. This pin can also be used as a GPIO signal. The FEC and calibration signals
are mapped to the same ball, therefore either the FEC or calibration function can be used, but not both. The
FEC and calibration functions are not available on the MPC5554. This pin can be used as a GPIO signal.
2.3.3.0.15 External Data / Ethernet Receive Data / Calibration Data / GPIO
DATA[29]_FEC_RXD[1]_CAL_DATA[13]_GPIO[57]
DATA[29]_FEC_RXD[1]_CAL_DATA[13]_GPIO[57] has the external data bus as the primary signal
function. The FEC receive data signal is the first alternate function, and the calibration data function is the
second alternate function. This pin can also be used as a GPIO signal. The FEC and calibration signals are
mapped to the same ball, therefore either the FEC or calibration function can be used, but not both. The
FEC and calibration functions are not available on the MPC5554. This pin can be used as a GPIO signal.
2.3.3.0.16 External Data / Ethernet Receive Data / Calibration Data / GPIO
DATA[30]_FEC_RXD[2]_CAL_DATA[14]_GPIO[58]
DATA[30]_FEC_RXD[2]_CAL_DATA[14]_GPIO[58] has the external data bus as the primary signal
function. The FEC receive data signal is the first alternate function, and the calibration data function is the
second alternate function. The FEC and calibration signals are mapped to the same ball, therefore either
the FEC or calibration function can be used, but not both. The FEC and calibration functions are not
available on the MPC5554. This pin can be used as a GPIO signal.
2.3.3.0.17 External Data / Ethernet Receive Data / Calibration Data / GPIO
DATA[31]_FEC_RXD[3]_CAL_DATA[15]_GPIO[59]
DATA[31]_FEC_RXD[3]_CAL_DATA[15]_GPIO[59] has the external data bus as the primary signal
function. The FEC receive data signal is the first alternate function, and the calibration data function is the
second alternate function. This pin can also be used as a GPIO signal. The FEC and calibration signals are
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