AN2757 Freescale Semiconductor / Motorola, AN2757 Datasheet - Page 25
AN2757
Manufacturer Part Number
AN2757
Description
MPC5200 Quick Start
Manufacturer
Freescale Semiconductor / Motorola
Datasheet
1.AN2757.pdf
(46 pages)
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Graphical Configuration Tool
Figure 23. Interrupt Controller Control Page (ICTL)
There are two sub-pages under the Interrupt Controller page, one for each Interrupt Priority Decoder of the MPC5200. The first
page
(Figure
24A) displays four Critical Priority interrupt sources and all 17 Main Interrupt Controller sources. The second page
(Figure
24B) displays all 24 Peripheral Interrupt Controller sources.
Each source can be assigned a relative priority and can be generally masked (disabled) or unmasked (enabled). For the Main
Interrupt Controller sources, the priority selection also defines which PowerPC core interrupt is physically generated for each
source (either External 0x500 interrupt or SMI 0x1400 interrupt).
As the Peripheral Interrupt decoder operates as a client to both Main Interrupt decoder and Critical Interrupt decoder, the priority
selection of each Peripheral source also defines whether the Main interrupt source (LO_int) or Critical Interrupt source (HI_int)
will be used by the peripheral source.
AN2757 MPC5200 Quick Start and Graphical Configuration Tool
Freescale Semiconductor
25
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