MPC5604B/C Microcontroller Reference Manual, Rev. 8
330 Freescale Semiconductor
19.4.1 Detailed signal descriptions
19.4.1.1 General-purpose I/O pins (GPIO[0:122])
The GPIO pins provide general-purpose input and output function. The GPIO pins are generally
multiplexed with other I/O pin functions. Each GPIO input and output is separately controlled by an input
(GPDIn_n) or output (GPDOn_n) register.
19.4.1.2 External interrupt request input pins (EIRQ[0:15])
1
The EIRQ[0:15] pins are connected to the SIUL inputs. Rising- or falling-edge events are enabled by
setting the corresponding bits in the SIUL_IREER or the SIUL_IFEER register.
1. EIRQ[0:15] in 144-pin LQFP and 208 MAPBGA packages; EIRQ[0:11] in the 100-pin LQFP
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