GPS
Product series
With HOLUX, You never lose the way!
HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
17
5.2 . Pin Assignment:
Table 5-1 pin definition:
Pin Pin Name
Type
Function description
1
VCC_IN
I
3.3 ~ 5.5 V supply input
2
GND
G Ground
3
BOOT_SEL
I
Boot selection. Pull high this pin at power on stage for flash
programming.
4
RXDA
I
Serial Data input A
5
TXDA
O
Serial Data Output A
6
TXDB
O
Serial Data Output B
7
RXDB
I
Serial Data input B
8
GPIO14
I/O
General Purpose I/O. flash at 1Hz when position is fixed.
9
RF_ON
O
Indication for RF power supply. Flashes in trickle power mode.
10
GND
G Ground
11
GND
G Ground
12
GND
G Ground
13
GND
G Ground
14
GND
G Ground
15
GND
G Ground
16
GND
G Ground
17
RF_IN
I
GPS signal input
18
GND
I Ground
19
V_ANT_IN
I
Antenna power supply input
20
VCC_RF_O
O
Antenna power supply, 2.85V
21
V_BAT
I
RTC and backup SRAM power, 2.6 ~ 3.6 VDC.
22
nRESET
I
Reset, active low
23
GPIO10
I/O
General purpose I/O
24
GPIO1
I/O
General purpose I/O
25
GPIO2
I/O
General purpose I/O
26
GPIO0
I/O
General purpose I/O
27
GPIO13
I/O
General purpose I/O
28
GPIO15
I/O
General purpose I/O
29
1 PPS
O
1 PPS output, synchronized with GPS time. TIME_MARK 1
PPS output, 1us/s
30
GND
G Ground
TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:[email protected] Website:www.holux.com.tw
