Cinterion
®
MV31-W Hardware Interface Description
5.5 Timing Sequence Requirement
75
t
MV31-W_HID_v01.009a
2022-04-27
Public / Preliminary
Page 59 of 76
5.5.4
Warm Boot Restart Timing
Figure 31:
Warm boot restart diagram
Table 25:
Warm boot restart information
5.5.5
Modem Standby Requirement
In order to perform a Modem Standby, the device MHI driver will query PCIe
®
root port capa-
bility via Microsoft
(TM)
API.
Currently, the 5G M.2 Data Card MV31-W’s device profile supports D0+, D3hot+, and ,
whereas D1 and D2 are not supported. If the D3cold capability is not enabled on the host BIOS,
there will be three messages from the "PCIE root port" (Root port is controlled by BIOS, RC
configuration register) as shown below:
A corresponding BIOS is required that has an "PCIe enable/disable D3cold" item. If this item is
not enabled on the standard BIOS, the user may have to modify the BIOS.
Symbol
Minimum value
Note
toff1
400ms
PERST# should deasserted before Full_Card_Power_Off#
toff2
500ms
With MBIM driver installed, Full_Card_Power_Off# deasserted
hold time
3s
Without MBIM driver installed, Full_Card_Power_Off#
deasserted hold time
ton1
150µs
Keep PCIe_CLK stable before PERST# is inactive.
ton2
150ms
PERST# should be deasserted after a Full_Card_Power_Off#
VBAT_3.3V
Full_Card_Power Off#
PECLK
PERST#
ton1
toff2
ton2
toff1
