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4.10.1. Onboard I/O control

GPIO2 is dedicated to the USB, push button, and MCI status signals as listed in Table 4.37.

Table 4.37. GPIO2 and MCI status signals
GPIO2 bitDescription
[7:5]Reserved
[4]USB Host Controller suspend/wakeup (pin 119 of ISP1761 USB Controller)
[3]USB Device Controller suspend/wakeup (pin 120 of ISP1761 USB Controller)
[2]General-Purpose push button
[1]MCI Write-protect status
[0]MCI Card-present status

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