Freescale Semiconductor ColdFire MCF52210 - Manual (Page 227)

Interrupt Controller Module
MCF52211 ColdFire® Integrated Microcontroller Reference Manual, Rev. 2
Freescale Semiconductor 14-17
2. The processor executes a STOP instruction which places it in stop mode. After the processor is
stopped, each interrupt controller enables a special logic path that evaluates the incoming interrupt
sources in a purely combinatorial path; that is, there are no clocked storage elements. If an active
interrupt request is asserted and the resulting interrupt level is greater than the mask value
contained in LPICR[6:4], then the interrupt controller asserts the wake-up output signal, which is
routed to the SCM and PLL module to re-enable the device’s clock trees and resume processing.