Rainbow Electronics EB-A801 - Manual (Page 10)

EB-A801 User’s Manual V1.0
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
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3.4 EB-A801 Definition of Pin Assignment
Pin# Pin name I/O Description
1 NC NC
2 USB_TX O USB data output
3 USB_RX I USB data input
4 TTL2_RX I TTL UART2 Input, if no use, keep floating
5 TTL1_RX I TTL UART1 Input, if no use, keep floating
6 TTL1_TX O TTL UART1 Output, if no use, keep floating
7 NC NC
8 1PPS O 1PPS Time mark output
9 NC NC
10 NC NC
11 NC NC
12 STATUS LED O Fix Signal output
13 NC NC
14 GND PWR Ground
15 VCC_IN PWR 3V~3.3V Supply Input
16 V_BAT I 1.5V~3.6V Input for backup RTC&SRAM
17 NC NC
18 RESET I Reset Pin, active high, if no use, keep floating
19 NC NC
20 GND PWR Ground
21 GPSMODE6 I Serial I/O Configuration, if no use, keep floating
22 GPSMODE5 I Serial I/O Configuration, if no use, keep floating
23 TTL2_TX O TTL UART2 Output, if no use, keep floating
24 GPSMODE2 I Sensitivity Mode, if no use, keep floating
25 ANT_ON PWR If use passive antenna, keep floating
26 GND PWR Ground
27 RF_IN I For RF signal input
28 GND PWR Ground