NXP Semiconductors MPC5644A, Reference Manual, Page: 486 / 1735

System Integration Unit (SIU)
MPC5644A Microcontroller Reference Manual, Rev. 6
486 Freescale Semiconductor
16.6.15.106Pad Configuration Register 186 (SIU_PCR186)
Figure 16-139. Pad Configuration Register (SIU_PCR186)
ALT1 ETPU_A[6] eTPU eTPU channel O 0b10
GPIO GPIO[185] SIU GPIO I/O 0b00
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.
S0x1B4
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
The OBE bit must be set to one for both EMIOS[7] and GPIO[186] when configured as outputs.
IBE
2
2
When configured as ETPU, 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. The IBE bit must be set to one for both EMIOS[7] and
GPIO[186] when configured as inputs.
0 0 ODE HYS SRC WPE WPS
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 0
= Unimplemented or Reserved
Table 16-142. SIU_PCR186 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 EMIOS[7] eMIOS eMIOS channel I/O 0b01
ALT1 ETPU_A[7] eTPU eTPU channel O 0b10
GPIO GPIO[186] SIU GPIO I/O 0b00
Table 16-141. SIU_PCR185 PA values
Signal Name Module Description I/O
1,2
PA value