5: On-Board Peripherals
GPS SiRFstarIV Evaluation Kit EVA2200-A for GPS Receiver Module A2200-A User Guide
17
5.3 LEDs
There are 6 LEDs on the EVA2200-A that indicate different signals from the GPS
receiver (o
rder of LED’s on EVA2200-A from left to right):
LED
Name
Function
Description
D3
TX
Transmit
Serial data traffic (from GPS receiver)
D2
RX
Receive
Serial data traffic (into GPS receiver)
D6
1PPS
Timing
1PPS signal at rising edge (1 pulse per second,
duration 500 ms typ.)
D5
ON
ON
ON after Reset, position request during PTF cycle and in
SiRFaware mode (the LED visualizes the ON pulse)
D1
WAKEUP
Operational
state
HIGH: Full operation
LOW: Module in a low power mode
D4
POWER
Power/Vcc Power on LED
Table 1: LEDs function and description
Figure 13: EVA2200-A LEDs
