Definition of pin assignment, Eb-a802-p gps engine board – Rainbow Electronics EB-A802 User Manual
Page 3
EB-A802-P GPS Engine Board
EverMore Technology, Inc.
2F, No.7, R&D Road 1, Science-Based Industrial Park, Hsinchu, Taiwan, 300, R.O.C.
http://www.emt.com.tw
Definition of Pin assignment
Pin# Name Type
Description
1
GPSMODE8
I
Antenna detection configuration, keep floating
2
GPSMODE9
I
Antenna detection configuration, keep floating
3
TxD1
O
Serial Port 1, if not used keep floating
4
RxD1
I
Serial Port 1, if not used keep floating
5
VDDIO
I
Pad voltage supply, 3.3V typical
6
VCC
I
Supply voltage, 3.3V typical
7
GND I
Ground
8
VDD18OUT
O
Internal 1.8V regulator output, if not used keep floating
9
GPSMODE10
I
Antenna detection configuration, keep floating
10
RESET_N
I
Reset Pin, active low, if not used keep floating
11
V_BAT
I
1.5V~ 3.6V Input for backup RTC&SRAM
12
NC
Not Connected, keep floating
13~15
GND I
Ground
16
RF_IN
I
GPS signal input
17
GND I
Ground
18
VCC_RF
O
Output Voltage RF section
19
V_ANT
I
Antenna Bias voltage
20
AADET_N
I
Active Antenna Detect (see application circuit)
21
GPSMODE3
I
Sensitivity mode configuration, keep floating
22
GPSMODE2
I
Sensitivity mode configuration, keep floating
23
GPSMODE7 I
USB Power Mode configuration, keep floating (Default
is self-powered) (“0” is bus-powered)
24
VDD_USB
I
USB Supply, 3.3V typical
25
USB_DM I/O
USB
data
26
USB_DP I/O
USB
data
27
EXTINT0
I
External Interrupt Pin
28
TIMEPULSE
O
Time pulse (1 PPS)