System Interface Unit (SIU)
MPC5553/MPC5554 Microcontroller Reference Manual, Rev. 5
6-60 Freescale Semiconductor
6.3.1.12.52 Pad Configuration Registers 96 (SIU_PCR96)
The SIU_PCR96 registers control the pin function, direction, and static electrical attributes of the
PCSA[0]_PCSD[2]_GPIO[96] pin. The PCSA[0] function is only available on the MPC5554. Although
the PCSA[0] function is not available in the MPC5553, this register enables the selection of the PCSD[2]
or GPIO function for the MPC5553.
Figure 6-64. PCSA[0]_PCSD[2]_GPIO[96] Pad Configuration Register (SIU_PCR96)
Refer to Table 6-16 for bit field definitions.
6.3.1.12.53 Pad Configuration Registers 97 (SIU_PCR97)
The SIU_PCR97 registers control the pin function, direction, and static electrical attributes of the
PCSA[1]_PCSB[2]_GPIO[97] pin. The PCSA[1] function is only available on the MPC5554. Although
the PCSA[1] function is not available in the MPC5553, this register enables the selection of the PCSB[2]
or GPIO function for the MPC5553.
Figure 6-65. PCSA[1]_PCSB[2]_GPIO[97] Pad Configuration Register (SIU_PCR97)
Refer to Table 6-16 for bit field definitions.
Address: Base + 0x0100 Access: Read / write[4:7, 10:15]
0123456789101112131415
R 0000
PA
1
1
The PCSA[0] function is only available on the MPC5554; it is not available on the MPC5553. Therefore, set the PA field value
for 0b01 or 0b11 only on the MPC5554. Valid MPC5553 PA settings are 0b10 for the PCSD[2] or 0b00 for GPIO.
OBE
2
2
When configured as PCSA[0], set the OBE bit to 1 for master operation, or clear the OBE bit to 0 for slave operation. When
configured as PCSD[2], the OBE bit has no effect. When configured as GPO, set the OBE bit to 1.
IBE
3
3
When configured as PCSA[0] in slave operation, set the IBE bit to 1. When configured as PCSA[0] in master operation,
PCSD[2], 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 + 0x0102 Access: Read / write[4:7, 10:15]
0123456789101112131415
R 0000
PA
1
1
The PCSA[1] function is only available on the MPC5554; it is not available on the MPC5553. Therefore, set the PA field value
for 0b01 or 0b11 only on the MPC5554. Valid MPC5553 PA settings are 0b10 for the PCSB[2] or 0b00 for GPIO.
OBE
2
2
When configured as PCS, the OBE bit has no effect. When configured as GPO, set the OBE bit to 1.
IBE
3
3
When configured as PCS 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
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