PXN20RM Datasheet, PDF (287/1376 Pages) Freescale Semiconductor, Inc – PXN20 Microcontroller

10.4 Functional Description
Interrupts and Interrupt Controller (INTC)
10.4.1 External Interrupt Request Sources
The INTC has two types of interrupt requests, peripheral and software settable. The assignments between
the interrupt requests from the modules to the vectors for input to the CPU are shown in
Table 10-12. The e200z6 and e200z0 Hardware Vector Mode Offset columns list the IRQ-specific offsets
when using hardware vector mode
It is important to note that interrupt table entries are 16 bytes in size for the e200z6. For the e200z0,
interrupt table entries are only 4 bytes in size. This difference in size, combined with the different starting
offset for the e200z0 interrupt requests, makes it impossible for the two cores to share a single interrupt
table. To solve this, either two different interrupt tables need to be created, or software vector mode should
be used for external interrupt requests.
Table 10-12. PXN20 External Interrupt Requests
Vector e200z6 Hardware
e200z0 Hardware
Number Vector Mode Offset Vector Mode Offset
PXN20 Vector
Vector Type
0
0x0000
1
0x0010
2
0x0020
3
0x0030
4
0x0040
5
0x0050
6
0x0060
7
0x0070
8
0x0080
9
0x0090
0x0800
0x0804
0x0808
0x080C
0x0810
0x0814
0x0818
0x081C
0x0820
0x0824
Software Interrupt 0
Software Interrupt 1
Software Interrupt 2
Software Interrupt 3
Software Interrupt 4
Software Interrupt 5
Software Interrupt 6
Software Interrupt 7
SWT Timeout SWT
ECC Error ECC
Software
SWT
ECC
Freescale Semiconductor
PXN20 Microcontroller Reference Manual, Rev. 1
10-19