Xplore Technologies Corp. MC7750 Manual Do Utilizador
Electrical Specifications
Rev 4 Sep.11
Proprietary and Confidential - Contents subject to change
35
Digital interface
The MC7750 Mini Card provides the general purpose digital I/O (GPIO) signals
listed in
listed in
:
•
By default, all GPIO pins are set as inputs.
•
Voltage should not be applied until > 1s after VCC is applied to the minicard.
•
GPIO pins are available for OEM-defined purposes but may, in future
firmware releases, be allocated by Sierra Wireless for specific functionality.
firmware releases, be allocated by Sierra Wireless for specific functionality.
•
For applications not requiring GPIO functionality, leave these pins not
connected on the host.
connected on the host.
Table 4-7: GPIO signals
Name
Pin
Description
Type
1,2
1.
GPIO pins are initialized as PD by the firmware.
2.
PD — Digital pin Input, internal pull down
GPIO1
6
General purpose IO
PD
GPIO2
16
General purpose IO
PD
GPIO3
28
General purpose IO
PD
GPIO4
44
General purpose IO
PD
GPIO5
46
General purpose IO
PD
GPIO6
48
General purpose IO
PD