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GPS
Product series
5.2 Pin assignment of connector :
Table 5-1 is pin list of the 20-pin Interface Connector. Connector is male
header 2 mm pitch DIP R/A type.
J4, 20-pin connector (2 mm pitch) pin definition
Pin
Pin Name
1
NC
2
VCC_5V
NC
3
NC
4
NC
VCC_3V
5
nRESET
6
GPIO1
7
GPIO2
8
GPIO3
9
GPIO4
10
GND
11
TXA
12
RXA
13
GND
14
TXB
15
RXB
16
GND
17
GPIO5
18
GND
19
TIMEMARK
20
NC
J7, 3-pin connector (2.54 mm pitch) pin definition. Available in test board.
Pin
Pin Name
1
TXDA
2
RXDA
3
GND
J8, 3-pin connector (2.54 mm pitch) pin definition for. Available in test
HOLUX Technology, Inc.
1F, No.30, R&D Road, Hsinchu 300, Taiwan (Hsinchu Science Industrial Park)
TEL: 886-3-6687000 FAX:886-3-6687111 E-mail:info@holux.com.tw Website:www.holux.com.tw
No function
+3.3 ~ +5V DC power input for -5 model
No function for -3 model
No function
No function for -5 model
regulated 3V power input for -3 model
Reset input, active low
General purpose I/O pin
General purpose I/O pin
General purpose I/O pin
General purpose I/O pin, LED flash when tracking
Ground
Serial Data output A
Serial Data input A
Ground
Serial Data output B
Serial Data input B
Ground
General purpose I/O pin, BOOT_SEL, Reserved for re-programming
flash.
Ground
1 PPS time mark output
No function
Serial Data output A, RS-232
Serial Data input A, RS-232
Ground
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Function description
Function description
16
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