NXP Semiconductors MPC5644A, Reference Manual, Page: 503 / 1735

System Integration Unit (SIU)
MPC5644A Microcontroller Reference Manual, Rev. 6
Freescale Semiconductor 503
16.6.15.133Pad Configuration Register 214 (SIU_PCR214)
The SIU_PCR214 register controls the enabling/disabling and drive strength of the ENGCLK pin. The
ENGCLK pin is enabled and disabled by setting and clearing the OBE bit. The ENGCLK pin is enabled
during reset.
Figure 16-166. Pad Configuration Register (SIU_PCR214)
Table 16-168. SIU_PCR213 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 WKPCFG Reset/Config Connects eTPU and eMIOS
pins to internal weak pull-up
or weak pull-down devices
after reset I 0b001
ALT1 NMI Reset/Config Non-Maskable interrupt I 0b010
ALT2 DSPI_B_SOUT DSPI Output O 0b100
GPIO GPIO[213] SIU GPIO I/O 0b000
S0x1EC
0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15
R
0 0 0 0 0 PA OBE
1
1
ENGCLK is enabled/disabled by setting/clearing this bit.
0 DSC ODE HYS 0 0 WPE WPS
W
Reset
0 0 0 0 0 1 1 0 1 1 0 0 0 0 0 0
= Unimplemented or Reserved
Table 16-169. SIU_PCR214 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 ENGCLK Clock Generation Engineering clock output O 0b001