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FIBOCOM FM150-NA User Manual
Page 45 of 72
System status
Timing Application
Connect standby
Refer to section
3.3.4.1
Figure 3-10 D0 L1.2 timing
Restart
Refer to section
3.3.3
Figure 3-9 Reset timing 2
nd
Modem FW upgrade / Modem
recovery
Refer to section
3.3.3
Figure 3-8 Reset timing 1
st
3.4 PCIe & USB
3.4.1
PCIe Interface
FM150 module supports PCIe Gen3, one lane for data transmission channel. It is also compatible with
PCIe Gen1/Gen2.After FM150 module is inserted into host, PCIe interface can work with the driver, then
enumerate 4 ports, such as AT command port(mhi_DUN)
、
capture QXDM LOG port(mhi_DIAG)
、
transport
QMU message port(mhi_QMIO)
、
report GNSS NEMA data port(mhi_GNSS).
3.4.1.1 PCIe Interface Definition
Pin# Pin Name
I/O Reset Value Description
Type
41
PETn0
O
-
PCIe TX Differential signals
Negative
-
43
PETP0
O
-
PCIe TX Differential signals
Positive
-
47
PERn0
I
-
PCIe RX Differential signals
NegativeBit0
-
49
PERP0
I
-
PCIe RX Differential signals
Positive
-
53
REFCLKN
I
-
PCIe Reference Clock signal
Negative
-
55
REFCLKP
I
-
PCIe Reference Clock signal
Positive
-
50
PERST#
I
PU
Asserted to reset module PCIe interface
default.
Active low, internal pull up(10KΩ).
1.8V/3.3V
52
CLKREQ#
O
L
Request a PCIe reference clock be available
(active clock state) in order to transmit data. It
1.8V/3.3V
