Quectel EM160R-GL, Проектирование аппаратного обеспечения

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LTE-A Module Series
EM160R-GL_Hardware_Design 28 / 73
Module AP
GPIO(AUX Reset)
PCIE_RST#(Global PCIe Reset)
PERST#
Figure 8: Reference Circuit for Laptop PCIe Reset Logic
3.4.2. Turn Off
Pulling down the FULL_CARD_POWER_OFF# pin will turn off the module. The turn-off timing is
illustrated in the following figure.
VCC(H)
FULL_CARD_
POWER_OFF#
Module Status
RESET#
Running OFF
1.8 V
3.7 V
V
IH
≥
1.19 V
T3
Active Turn-off procedure OFF
PERST#
T1
T2
Execute AT+CFUN=0 ,
and the module responds OK
Figure 9: Turn-off Timing through FULL_CARD_POWER_OFF#
Table 9: Description of the Turn-off Timing through FULL_CARD_POWER_OFF#
Index Min. Typ. Max. Comment
T1 15 ms - - PCIe interface is disabled by asserting PERST#.
T2 0 ms 100 ms -
The period from the host pulling down RESET# to it pulling
down FULL_CARD_POWER_OFF#.
T3 900 ms - -
The period from the host pulling down
FULL_CARD_ POWER_OFF# to the module turning off.
It is recommended to cut off the VCC when the module
has been turned off completely.