System Integration Unit (SIU)
MPC5566 Microcontroller Reference Manual, Rev. 2
6-36 Freescale Semiconductor
Refer to Table 6-19 for bit field definitions. Table 6-33 lists the PA fields for
DATA[28]_FEC_TXD[1]_GPIO[56].
6.3.1.33 Pad Configuration Registers 57 (SIU_PCR57)
The SIU_PCR57 register controls the function, direction, and electrical attributes of
DATA[29]_FEC_RXD[1]_GPIO[57].
Figure 6-34. DATA[29]_FEC_RXD[1]_GPIO[57] Pad Configuration Registers (SIU_PCR57)
Refer to Table 6-19 for bit field definitions. Table 6-34 lists the PA fields for
DATA[29]_FEC_RXD[1]_GPIO[57].
Table 6-33. PCR56 PA Field Descriptions
PA Field Pin Function
0b00 GPIO[56]
0b01 DATA[28]
0b10 FEC_TXD[1]
0b11 DATA[28]
Address: Base + 0x00B2 Access: R/W
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R 0 0 0 0
PA OBE
1
1
When configured as DATA[29] or FEC_RXD[1], the OBE bit has no effect. When configured as GPDO, set the OBE bit to 1.
IBE
2
2
When the pad is configured as an output, set the IBE bit to 1 to show the pin state in the GPDI register.
Clear the IBE bit to 0 to reduce power consumption. When configured as GPDI, set the IBE bit to 1.
DSC ODE
3
3
When configured as DATA[29] or FEC_RXD[1], clear the ODE bit to 0.
HYS
4
4
If external master operation is enabled, clear the HYS bit to 0.
0 0
WPE
5
5
Refer to the EBI section for weak pullup settings when configured as DATA[29] or FEC_RXD[1].
WPS
5
W
RESET: 0 0 0 0 0 0 0 0 1 1 0 0 0 0 1 1
Table 6-34. PCR57 PA Field Descriptions
PA Field Pin Function
0b00 GPIO[57]
0b01 DATA[29]
0b10 FEC_RXD[1]
0b11 DATA[29]