RoyalTek RGM-2106 - Manual (Page 9)

RGM-2106 Operational Manual
Definition of Pin assignment
z V_1V8 (DC 1.8V@ 5% power Input)
This is the DC power supply input pin for GPS system. It provides voltage to module.
z GND
GND provides the ground.
z RXD
This is the main receiver channel and is used to receive software commands to the board from
SIRFdemo software or from user written software.
z TXD
This is the main transmitting channel and is used to output navigation and measurement data
to SiRFdemo or user written software.
z PPS (TIMEMARK)
This pin provides one pulse-per-second output from the board, which is synchronized to GPS
time. Need firmware supporting. If don’t used, can open.
Note: At present the PPS function has not open.
z Power
Connect VCC_IN_1V8 pin to DC 1.8V. The power supply must add bypass capacitor (10uF
and 1uF).It can reduce the Noise from power supply and increase power stability.
z Shutdown
Shutdown the RGM-2106 module, don’t remove the Vcc_IN_1V8 Pin, must be use on/off
pulse make it into Hibernate mode.(It’s will keep the Warm start and Hot start function work
well)
z ON/OFF
Input pulse is required to start the system, and switch the operation mode to full-power mode
or Hibernate mode.