Rainbow Electronics EB-230 - Manual (Page 5)

EB-230 Data Sheet
Ver 1.3 5
2 Technical Description
2.1 Block Diagram
2.2 Pin Definition
Pin# Signal Name Type Description
1 RF Input I Antenna port, L1, 1575.42MHz, 50 ohm
2 GND P Ground
3 V30D P Digital power supply, 3.0V ±10%
4 GPS status/
GPIO0
O GPS status, blink when GPS has position fix
General input/ output
5 1PPS O 1Hz pulse 10% duty cycle when GPS has position fix
6 TXD O 3V CMOS level, data output from EB-230
7 RXD I 3V CMOS level, data into EB-230
8 GND P Ground
9 GND P Ground
10 GPIO6/SO I/O* General input/ output, SPI data output
11 GPIO4/SCS1 I/O* General input/ output, SPI chip select 1
12 GPIO5/SCS0 I/O* General input/ output, SPI chip select 0
13 GPIO7/SIN I/O* General input/ output, SPI data input
14 GPIO8/SCK I/O* General input/ output, SPI clock
15 V12RTC P RTC power 1.0~1.5Vdc, 500uA max
16 V30A P Analog power supply, 3.0V ±10%
17 GND P Ground
18 GND P Ground
P: Power I: Input O: Output I/O*: Input or Output, Open if not used