RoyalTek reb-4315 用户手册
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10
REB-4315 Operational Manual
9 nRESET Input
External reset input with
internal pull-up, active
low.
Vil ：-0.4v~0.45v
Vih ：1.26v~1.8v
Vih ：1.26v~1.8v
(CMOS I/O run from 1.8v)
10 ON/OFF Input
Power control pin.
Need a pulse to ON or
OFF the Chip set.
Vil ：-0.4v~0.45v
Vih ：1.26v~3.6v
Vih ：1.26v~3.6v
(CMOS I/O run from 1.8v)
11 NC
Non
connect
12 VCC_IN_1V8
Input
Single voltage supply of
1.8v.
Max. 1.89v
13 DR_I2C_DIO
Reserved
Reserved.
14 DR_I2C_SCK
Reserved
Reserved.
15 GPIO-2 Reserved
Reserved.
16 BOOT Input
Boot
select.
Vil ：-0.4v~0.45v
Vih ：1.26v~1.8v
Vih ：1.26v~1.8v
(CMOS I/O run from 1.8v)
17 Wakeup Output
Indicate the state of the
chip set.
Vol Max：0.4v
Voh Min：1.35v
(CMOS I/O run from 1.8v)
18 GND
Ground
19 GPS_RF_IN Input
GPS
Signal
input.
20 GND
Ground
21 GND
Ground
22 GND
Ground
VCC_IN_1V8 (Power Input)
This is the DC power supply input pin for GPS system. It provides voltage to
module.
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.
Normal operation mode it is set to low voltage.