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The following figure and table are PCIe turn-on timing and variables of the module.
VCC
FCPO#
RESET#
RFFE_VIO_1V8
PCIE_CLKREQ_N
PCIE_RST_N
PCIE_REFCLK
Table 18: PCIe Turn-on Timing of the Module
Symbol
Min.
T
0 ms
power-on
T
-
VCC-RST#
T
68 ms
turn-on
t
90 ms
FCPO#-CLKREQ#
t
100 ms
FCPO#-PERST
100 μs
T
PERST#-CLK
4.4. PCM Interface
The module supports audio communication via Pulse Code Modulation (PCM) digital interface. The PCM
interface supports the following modes:
RM502Q-GL_Hardware_Design
Module power-on or insertion detection
System turn-on and booting
T
VCC-RST#
T
> 90 ms
FCPO#-CLKREQ#
T
T
power-on
turn-on
Figure 21: PCIe Power-up Timing of the Module
Typ.
Max.
20 ms
-
33 ms
-
-
-
100 ms
-
-
-
-
-
RM502Q-GL Hardware Design
T
> 100 ms
FCPO#-PERST#
T
> 100 us
PERST#-CLK
Comment
Module power-on time depending on the host.
Time period between module power-on and
RESET# being driven HIGH.
Module system turn on time.
PCIe clock request.
PCIe reset.
The time period during which REFCLK is stable
before PERST# is inactive.
5G Module Series
3.7 V
≥ 1.19 V
V
IH
1.8 V
1.8 V
46 / 83
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