GeoTrack Speedy User Manual
CONFIDENTIAL
8 Page
Version 0.1A
2.7 DM/GPS(JTAG/External GPS) Interface
[Figure 2-3] DM/GPS Interface Connector
Pin
Signal Name
Input/Output
Function
1
JTAG_TDO
O
JTAG Serial data out
2
JTAG_TDI
I
JTAG Serial data in
3 NC
-
Not
used
4 JTAG_TCK
I
JTAG
Clock
5 NC
-
Not
used
6 GPS_ENB
O
GPS
Enable
7 VDD
-
+5VDC
8
GPS_TXD
I
GPS Serial data out
9
GPS_RXD
O
GPS Serial data in
10 GND
-
Ground
11
GPS_BOOT
O
GPS Boot select
12 JTAG_TMS
I
JTAG
Mode
select
13 RESET
I
Reset
14 BOOT
I
Boot
Select
[Table 2-2] DM/GPS Interface
2.8 OPTION(UDM/AddMe) Interface
[Figure 2-4] OPTION Interface Connector
