RoyalTek REB-4315 Operational Manual page 11

9 nRESET
10 ON/OFF
11 NC
12 VCC_IN_1V8
13 DR_I2C_DIO
14 DR_I2C_SCK
15 GPIO-2
16 BOOT
17 Wakeup
18 GND
19 GPS_RF_IN
20 GND
21 GND
22 GND
VCC_IN_1V8 (Power Input)
This is the DC power supply input pin for GPS system. It provides voltage to
module.
Shutdown
Shutdown the REB-4315 module, don't remove the Vcc_IN_1V8 Pin, You should use
on/off pulse make the chip into Hibernate mode.(It's will keep the receiver's SRAM
data integrity)
GND provides the reference ground.
Boot(CMOS I/O run from 1.8v)
Set this pin to high for programming flash.
Normal operation mode it is set to low voltage.
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REB-4315 Operational Manual
External reset input with
Input internal pull-up, active
Power control pin.
Input Need a pulse to ON or
OFF the Chip set.
Non connect
Single voltage supply of
Input
Reserved Reserved.
Reserved Reserved.
Reserved Reserved.
Input Boot select.
Indicate the state of the
Output
chip set.
Ground
Input GPS Signal input.
Ground
Ground
Ground
10
low. (CMOS I/O run from 1.8v)
(CMOS I/O run from 1.8v)
1.8v.
(CMOS I/O run from 1.8v)
(CMOS I/O run from 1.8v)
Vil ：-0.4v~0.45v
Vih ：1.26v~1.8v
Vil ：-0.4v~0.45v
Vih ：1.26v~3.6v
Max. 1.89v
Vil ：-0.4v~0.45v
Vih ：1.26v~1.8v
Vol Max：0.4v
Voh Min：1.35v