User's Manual

Table Of Contents
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
Tab l e 4-7:
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.
For applications not requiring GPIO functionality, leave these pins not
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