NXP Semiconductors MPC5644A, Reference Manual, Page: 489 / 1735

System Integration Unit (SIU)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor 489
16.6.15.110Pad Configuration Register 190 (SIU_PCR190)
Figure 16-143. Pad Configuration Register (SIU_PCR190)
16.6.15.111Pad Configuration Register 191 (SIU_PCR191)
Figure 16-144. Pad Configuration Register (SIU_PCR191)
S0x1BC
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R
0 0 0 PA OBE
1
1
The OBE bit must be set to one for both EMIOS[11] and GPIO[190] when configured as outputs.
IBE
2
2
When configured as 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. The IBE bit must be set to one for both EMIOS[11] and
GPIO[190] when configured as inputs.
0 0 ODE HYS SRC WPE WPS
3
3
The weak pull up/down selection at reset for the EMIOS[11] pin is determined by the WKPCFG pin.
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 WKP
= Unimplemented or Reserved
Table 16-146. SIU_PCR190 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[11] eMIOS eMIOS channel I/O 0b001
ALT1 DSPI_D_PCS[4] DSPI Chip select O 0b010
ALT2 RCH3_C Reaction Reaction channel O 0b0100
GPIO GPIO[190] SIU GPIO I/O 0b000
S0x1BE
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R
0 0 0 PA OBE
1
1
The OBE bit must be set to one for GPIO[191] when configured as an output.
IBE
2
2
When configured as ETPU_A[27] 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. The IBE bit must be set to one for GPIO[191]
when configured as an input.
0 0 ODE HYS SRC WPE WPS
3
3
The weak pull up/down selection at reset for the EMIOS[12] pin is determined by the WKPCFG pin.
W
Reset
0 0 0 0 0 0 0 0 0 0 0 0 0 0 1 WKP
= Unimplemented or Reserved