NXP Semiconductors MPC5644A, Reference Manual, Page: 459 / 1735

System Integration Unit (SIU)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor 459
16.6.15.77 Pad Configuration Register 113 (SIU_PCR113)
Figure 16-99. Pad Configuration Register (SIU_PCR113)
16.6.15.78 Pad Configuration Register 114–125 (SIU_PCR114–SIU_PCR125)
The SIU_PCR114 – SIU_PCR125 registers control the pin function, direction, and static electrical
attributes of the ETPUA0 – ETPUA11 pins, which host the ETPU_A[0:11], ETPU_A[12:23] and
GPIO[114:125] signals.
Table 16-101. SIU_PCR110 PA values
Signal Name Module Description I/O
1,2
1
In cases where an I/O function can be either an input or an output, I/O direction is specified using the IBE and OBE
bits. Set IBE = 1 for input or OBE = 1 for output.
2
For I/O functions that change direction dynamically, such as the external data bus, switching between input and
output is handled internally and the IBE and OBE bits are ignored.
PA value
Primary DSPI_B_PCS[5] DSPI Chip select O 0b01
ALT1 DSPI_C_PCS[0] DSPI Chip select I/O 0b10
GPIO GPIO[110] SIU GPIO I/O 0b00
S0x122
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 TCRCLKA or IRQ, the OBE bit has no effect. When configured as GPO, the OBE bit should
be set to one.
IBE
2
2
When configured as TCRCLKA or IRQ or GPO, the IBE bit may be set to one to reflect the pin state in the
corresponding GPDI register. Setting the IBE bit to zero reduces power consumption. When configured as GPI, the
IBE bit should be set to one.
0 0 ODE HYS SRC WPE WPS
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 1
= Unimplemented or Reserved
Table 16-102. SIU_PCR113 PA values
Signal Name Module Description I/O
1,2
1
In cases where an I/O function can be either an input or an output, I/O direction is specified using the IBE and OBE
bits. Set IBE = 1 for input or OBE = 1 for output.
2
For I/O functions that change direction dynamically, such as the external data bus, switching between input and
output is handled internally and the IBE and OBE bits are ignored.
PA value
Primary TCRCLKA eTPU TCR time base input clock I 0b01
ALT1 IRQ[7] SIU External interrupt I 0b10
GPIO GPIO[113] SIU GPIO I/O 0b00