GPS RADIONOVA® RF Module
Part No. M10578-A3
Antennas for Wireless M2M Applications
9
Product Specification GPS RADIONOVA
M10578-A3_PS-1.0
Host Baud Rate/Protocol Selection
The baud rate and output protocol can be changed dynamically after start up using the relevant
commands.
Please contact Antenova for more information about protocol messages.
Host Interface
UART Interface
The UART converts bytes of data to and from asynchronous start -stop bit streams as binary electrical
impulses.
The port contains a 16-byte FIFO, and 256 bytes of URAM. The bit rates are
selectable from 4800, 9600,
38400 and 115200 bps.
The IO level from the UART port are CMOS compatible, however for RS232 compatibility the use
of external
level shifters will be required. The hardware configuration of the port baud can be
changed dynamically by the
use of commands. These will be active and saved as long as the
VBACKP supply is applied.
Power Supply
The M10458-A3-1 uses two DC supply inputs. VBCKUP to power the RAM and RTC sections of
the receiver, and
VCC to power the digital and processing sections. VBCKUP is to be applied all the
time to keep these sections alive.
VCC can be removed to initiate a backup power save mode (See
page 10). VBCKUP can be removed if a battery is
also used at VBCKUP to maintain this supply.
The supply is internally regulated for 2.8V meaning the external supply
is versatile for a range of
voltage levels.
TM (1PPS)
TM is a one pulse per second output from the receiver providing uses for timing purposes. The
pulse is not only
limited to being active every second, but also allows the setup to a required
duration, frequency and active high/low
by programming user defined settings.
HRST (Hardware Reset Pin)
The External reset pin is default high by an internal 75Kohm and should be left floating if not used.
To initiate a reset
the pin needs to be pulled low. The module also initiates a reset if the VCC drops
below the minimum 2.8V supply.