Royaltek RDR-3100 Manual de usuario descargar pdf (Pagina 9)

RDR-3100 User Manual

5. Interface

5.1 Connector Type：20 Pin Header，2.0 mm pitch (J2)

Signal Name I/O Description Characteristics

1 N.C None connector

2 GPS 5V I +5V DC Power Input DC +5V ± 1%.

3 RTC (Backup

voltage)

I User Supply DC +2.6 ~

+3.6V

DC +2.6 ~ +3.6V.

Current ≤ 10uA w/o battery

4 GPS 5V I +5V DC Power Input

5 Reset I Reset (Active low)

8.0 2.3V V

6 Boot I Boot mode

VVVV

ILIH

855.00.3V- 995.115.3 ≥≥

≤

7 Back (Reverse

line)

I Forward or Back Forward (Hi level :>2V)

Backward (Lo level: <0.8V)

8 N.C None connector

9 Odometer I Odometer Input frequency<32k HZ

Vih > 2V Vil<0.8V

10 GND G Ground Reference Ground

11 TXD1 (SiRF 3

TXD1)

O NMEA (transmit) Car PC

(UAR1)

OLOH

715.0 VVV 375.285.2

38400bps, 8 data bits, no

parity, 1 stop bit

≤

≥≥

12 RXD1 (SiRF 3

RXD1)

I NMEA (Receive) Car PC

(UAR1)

VVVVV

ILIH

855.00.3V- 995.115.3 ≤≥≥

≤

13 GND G Ground Reference Ground

14 TXD2 (SiRF 3

TXD2)

O Can bus data (transmit)

Car PC (UAR2)

Vih > VDD-0.1V Vil<0.6V

VDD:3.3V for MCU

1 2 3 4 5 6 7 8 9 10 11 12 13 14 ... 26 27

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Royaltek RDR-3100 Manual de usuario Pagina 9

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