User's Manual

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FIBOCOM FM150-NA User Manual Page 47 of 75
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