Xplore Technologies Corp. MC7750 Manual Do Utilizador
Rev 4 Sep.11
Proprietary and Confidential - Contents subject to change
23
4
4: Electrical Specifications
The system block diagram in
represents the MC7750
module integrated into a host system. The module includes the
following interfaces to the host:
following interfaces to the host:
•
Power
— Supplied to the module by the host.
•
W_DISABLE_N
— Active low input from a hardware switch to the
MC7750 that disables the main RF radio.
•
WLAN_LED_N
— Active-low
drive signal provides an
indication of RADIO ON state, either WAN or GPS.
•
Antenna
— Three U.FL
connectors (two for Rx / Tx, and one for
GPS). For details, see
Note that GPS can use either the dedicated GPS port, or the
diversity/
diversity/
port. GLONASS is supported only on the
dedicated GPS port.
•
SIM
— Supported through the interface connector. The
cavity / connector must be placed on the host device for this
feature.
feature.
•
USB
— Interface to the host for data, control, and status infor-
mation.
•
GPIO
— Six GPIOs reserved for future use.
The MC7750 has two main interface areas — the host I/O connector
and the
and the
ports. Details of these interfaces are described in the
sections that follow.