G6
Hardware User Guide
Copyright © Neoway Technology Co., Ltd
8
3.2 Work Modes
G6 supports position fix mode, sleep mode, and standby mode.
Position fix mode
In position fix mode, acquisition engine is enabled. The module switches to tracking status to
reduce operating current after obtaining valid position information, all ephemeris and data.
Sleep mode
In sleep mode, the power and clocks of all functionalities are shut down except RTC backup
zone. The power of kernel circuit is not shut down but its clock is disabled.
−
The module enters sleep mode if the host sends 23 3E 02 04 01 00 01 08 1E in
hexadecimal format to it through UART.
−
It wakes up to enter position fix mode if the host sends any data or EXT_INT0 is pulled low.
To support hot start and warm start, V_BCKP must be able to supply power all the time after
VCC is shut down.
Standby mode
After VCC is shut down, the module enters standby mode. The power and clocks of all
functionalities are disabled except RTC backup zone.
The module enters position fix mode after VCC is powered up.
To support hot start and warm start, V_BCKP must be able to supply power after VCC is shut
down. It is recommended to keep V_BCKP able to supply power all the time so that the module
can fix position fast.
Table 3-1 Lists the clock status and currents in different modes.
Table 3-1 Power and clock status and current in different modes
Work Mode
VCC V_BCKP Main Clock RTC Clock Current
Position fix mode ON
ON
ON
ON
𝐼
𝑉𝐶𝐶
= 30mA
@multiple GNSS
modes
Sleep mode
ON
ON
OFF
ON
𝐼
𝑉𝐶𝐶
= 10mA
Standby mode
OFF
ON
OFF
ON
𝐼
𝑉_𝐵𝐶𝐾𝑃
= 20𝑢𝐴
3.3 nRESET
nRESET is triggered by negative pulse that exceeds 1 ms. This pin is pulled up internally and its typical
high-level voltage is 3.3 V. Leave this pin disconnected if you do not use it.
