SkyTraq NS-HP-GN2 - J2 Pin Description

8
12
GND
Ground
Pin No.
Name
Description
J2
1
GND
Ground
2
NC
No connection, empty pin
3
NC
No connection, empty pin
4
NC
No connection, empty pin
5
NC
No connection, empty pin
6
NC
No connection, empty pin
7
NC
No connection, empty pin
8
TXD
UART serial data output, 3.3V LVTTL.
One full-duplex asynchronous serial UART port is implemented. This UART
output is used for sending position, time and velocity information from the
receiver in NMEA-0183 format. When idle, this pin output HIGH.
9
RXD
UART serial data input, 3.3V LVTTL.
One full-duplex asynchronous serial UART port is implemented. This UART input
is for sending commands or information to the receiver in SkyTraq binary
protocol. In the idle condition, this pin should be driven HIGH.
10
V_BCKP
Backup supply voltage for internal RTC and backup SRAM, 1.3V ~ 3.6V. V_BCKP
must be applied whenever VCC is applied. This pin should be powered
continuously to minimize the startup time. If VCC and V_BCKP are both
removed, the receiver will be in factory default mode upon power up, all user
configuration set is lost. For applications the does not care cold starting every
time, this pin can be connect to VCC.
11
VCC
Power supply, 3.3V DC
12
GND
Ground