5G Module Series
RM502Q-GL Hardware Design
RM502Q-GL_Hardware_Design 25 / 77
3.4.1.3. Turn on the Module with Compatible Design
The following figure shows a compatible design to turn on the module automatically after power-up or by
host.
Host
Module
FULL_CARD_POWER_OFF#
PMU
GPIO
6
VCC
Notes:
1. The voltage of pin 6 should be no less than 1.19V when it is at HIGH level.
2. The VCC represents the power supply of the module.
Auto turn on
Turn on by host
R1
R2
10k
NM
NM
0
Ω
R4
100k
R1
10k
R2
NM_0
Ω
Figure 8: Turn on the Module with Compatible Design
The turn-on scenario is illustrated in the following figure.
VCC
RESET_N
TBD
Module power-on or insertion detection
USIM1_VDD / USIM2_VDD
Module Status
FULL_CARD_POWER_OFF#
RFFE_VIO_1V8
33 ms
System turn-on and booting
V
IH
≥ 1.19 V
1.8 V or 3.0 V
System booting
Inactive
Active
t
power-on
t
turn-on
t
booting
68 ms
t
0
Figure 9: Turn-on Timing of the Module
1. t
power-on
is time the interval between VCC and RESET_N HIGH level, which is a typically 33 ms. It is
measured when RESET_N is not pulled down by the host device.
2. t
turn-on
is the time interval between FULL_CARD_POWER_OFF# HIGH level and RFFE_VIO_1V8(an
NOTES