GPS receiver A1080-A
10.4 1PPS pin (1 pulse per second pin)
The 1PPS pin is an output pin.
In addition to precise positioning, GPS also allows for accurate timing due to the
synchronized atomic clocks in the GPS satellites. While the current date and time is
transmitted in NMEA sentences, an exact and accurate timing signal is provided via
the 1PPS pin of the A1080 modules.
10.5 Reset Signal
The nRST pin is an input pin.
The nRST pin can be used to generate a reset on the A1080-A module. Resetting
the module will result in a restart of the complete firmware. All information stored in
SRAM will still be valid.
10.5.1 Reset Sources
10.5.1.1 Internal reset circuit
The A1080 is already equipped with a voltage monitoring device that generates a
proper power-on reset at the appropriate threshold and delay. Additionally it takes
care about the brown-out protection. Usually there is no need to deal with the reset
input externally, thus the general advice is to leave this pin open.
V2.3 - 07/07
User’s Manual
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