PXR40RM Datasheet, PDF (188/1434 Pages) Freescale Semiconductor, Inc – PXR40 Microcontroller

System Integration Unit (SIU)
7.2.1.5 I/O Weak Pullup Reset Configuration (WKPCFG)
The WKPCFG signal is applied when the internal reset signal asserts (indicated by RSTOUT asserting),
and is sampled four clock cycles before RSTOUT negates. The WKPCFG value configures the internal
weak pullup or weak pulldown pin characteristics after a reset occurs in the eMIOS or eTPU modules.
The value of WKPCFG is latched at reset, stored in the reset status register (SIU_RSR), and updated for
all reset sources except the debug port reset and software external reset. The WKPCFG value must be valid
and not change until RSTOUT negates.
7.2.1.6 External Interrupt Request Input (IRQ)
IRQ[0:15] The external interrupt request (IRQ) inputs connect to the SIU IRQ inputs. The external IRQ
Input Select Register (SIU_EIISR) specifies the IRQ[0:15] signals that are input to the SIU IRQs.
PXR40 Microcontroller Reference Manual, Rev. 1
7-6
Freescale Semiconductor