RoyalTek REV-2000 - Manual (Page 24)

RoyalTek GPS Receiver REB-2000/REB-12R REV-2000 Operational Manual
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Ordering information
For the complete pricing and delivery information, please contact:
RoyalTek Company Ltd.
1071 Chung Cheng Rd.,Suite 9F-1,Tao Yuan City,Taiwan,R.O.C.
Tel: 886-3-3569666
Fax: 886-3-3560900
Http://www.royaltek.com
e-mail: [email protected]
Hardware interface
REB-2100.
Pin NO Signal
Name
I/O Description Characteristics
1 VCC_3 I +3.3V DC Power Input DC +3.3V ± 10%.
2 TXA O NMEA Output
9600bps, 8 data bits, no
parity, 1 stop bit
TTL Level
Voh
≥ 2.4V
Vo1 ≤ 0.4V
3 RXA Reserved
4 GND G Ground
5 GPIOA Reserved
6 TXB Reserved
7 RXB I RTCM 104 differential GPS
input. TTL Level
Voh
≥ 2.4V
Vo1 ≤ 0.4V
8 TIMEMA
RK
O 1PPS Time Mark Output. TTL Level
Voh
≥ 2.4V
Vo1 ≤ 0.4V
9 RESET I Reset Input, Active Low Voh>VCC_3 -1.5V
Vol<0.3V
10 VANT O Reserved DC +3.3V ± 10%.
11 VBAT I User Supply +2.5~3.1V DC
Power Input* DC + 2.5 ~ 3.1V
Current
≤ 10uA
12 BOOTSE
T
Reserved
VCC_3 DC Power Input
RoyalTek also provides the 3.3 V version
GPS receiver. This is the main power supply
for the Engine board. Use a regulated 3.3V
supply ( ± 10%).
GND
GND provides the ground for the Engine
board. Connect all grounds.
Serial Data:RXA, RXB, TXA, and TXB
The GPS Engine board supports two full
duplicated serial channels. All four
connections are at TTL levels, and all
support variable baud rates. A TTL to RS232
conversion is necessary to directly