PXD10RM Datasheet, PDF (1259/1332 Pages) Freescale Semiconductor, Inc – PXD10 Microcontroller

41.5.4 On-Chip Wakeups
The Wakeup Unit supports one on-chip wakeup source. It combines the on-chip wakeups with the external
ones to generate a single wakeup to the system.
41.5.4.1 On-Chip Wakeup Management
In order to allow software to determine the wakeup source at one location, on-chip wakeups are reported
along with external wakeups in the WISR register (see Table 41-5 for details). Enabling and clearing of
these wakeups are done via the on-chip wakeup source’s own registers.
Freescale Semiconductor
PXD10 Microcontroller Reference Manual, Rev. 1
Preliminary—Subject to Change Without Notice
41-13