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Figure 4-6, Distribution of gpio, Functional description – Artesyn COMX-P40x0 ENP2 Installation and Use (August 2014) User Manual

Page 69

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Functional Description

COMX-P40x0 ENP2 Installation and Use (6806800R95B)

69

GPIO19, 20, 23, and 24 are multiplexed with other functional blocks. The pins should be
configured as follows.

GPIO19: RCW [DMA1]=1b

GPIO20: RCW [DMA2]=10b

GPIO23/24: RCW [IRQ]=1b

After reset, the direction for all GPIOs are set to input. All GPIOs used as output need to be
reconfigured.

Figure 4-6

Distribution of GPIO