Freescale Semiconductor MPC5553 - Page 236

System Interface Unit (SIU)
MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
Freescale Semiconductor 6-57
6.3.1.12.46 Pad Configuration Register 90 (SIU_PCR90)
The SIU_PCR90 register controls the pin function, direction, and static electrical attributes of the
RXDA_GPIO[90] pin.
Figure 6-58. RXDA_GPIO[90] Pad Configuration Register (SIU_PCR90)
Refer to Table 6-16 for bit field definitions.
6.3.1.12.47 Pad Configuration Register 91 (SIU_PCR91)
The SIU_PCR91 register controls the pin function, direction, and static electrical attributes of the
TXDB_PCSD[1]_GPIO[91] pin.
Figure 6-59. TXDB_PCSD[1]_GPIO[91] Pad Configuration Register (SIU_PCR91)
Refer to Table 6-16 for bit field definitions.
Address: Base + 0x00F4 Access: Read / write[5:7, 10:15]
0123456789101112131415
R 00000
PA OBE
1
1
When configured as RXDA, the OBE bit has no effect. When configured as GPO, set the OBE bit to 1.
IBE
2
2
When configured as RXDA or GPO, set the IBE bit to 1 to reflect the pin state in the corresponding GPDI register. Clear the
IBE to 0 to reduce power consumption. When configured as GPI, set the IBE bit to 1.
00
ODE HYS SRC WPE WPS
W
RESET: 0000000000000011
Address: Base + 0x00F6 Access: Read / write[4:7, 10:15]
0123456789101112131415
R 0000
PA OBE
1
1
When configured as TXDB or PCS, the OBE bit has no effect. When configured as GPO, set the OBE bit to 1.
IBE
2
2
When configured as TXDB or PCS or GPO, set the IBE bit to 1 to reflect the pin state in the corresponding GPDI register. For
SCI loop back operation the IBE bit must be set to 1. Clear the IBE to 0 to reduce power consumption. When configured as
GPI, set the IBE bit to 1.
00
ODE HYS SRC WPE WPS
W
RESET: 0000000000000011