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Functional description – Artesyn COMX-P40x0 ENP2 Installation and Use (January 2015) User Manual

Page 79

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Functional Description

COMX-P40x0 ENP2 Installation and Use (6806800R95C)

79

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

IOEXT_GPO7
(PCA9557 I/O6)

GPO7 of COM Express connectors

IOEXT_GPO8
(PCA9557 I/O7)

GPO8 of COM Express connectors

Table 4-5 GPIO

GPIO name

function