Chip Errata for the i.MX23 - Guy Carpenter

2745
2745 EMI interrupts are not available.
Description:
The i.MX23 memory controller is capable of generating an interrupt under the following
conditions:
A single access outside the defined physical memory space is detected
Multiple accesses outside the defined memory space are detected.
DRAM initializations are complete
DLL unlock condition is detected.
This interrupt is not used with the i.MX23 interrupt controller.
Workaround:
For software to detect and react to any of the four controller interrupt conditions, the software must
read DRAM control register 16 and examine the values in the int_status field. Typically, however,
this feature should have minimal value in a system with memory management, where physical
memory mappings can be controlled via page tables. As such, Freescale does not recommend using
these status bits or interrupts for the purpose of physical memory range control.
Chip Errata for the i.MX23, Rev. 2
6 Freescale Semiconductor