Quectel M35 User Manual

GSM/GPRS Module Series
M35 User Manual
M35_User_Manual Confidential / Released 23 / 85
Table 4: Multiplexed Functions
1)
The alternate function can be configured through AT command. For details, please refer to the section
3.9 and section 3.10.
3.2. Operating Modes
The table below briefly summarizes the various operating modes in the following chapters.
Table 5: Overview of Operating Modes
PCM_
SYNC
12
O
PCM sync signal
VILmin=-0.3V
VILmax=
0.25×VDD_EXT
VIHmin=
0.75×VDD_EXT
VIHmax=
VDD_EXT+0.2
VOHmin=
0.85×VDD_EXT
VOLmax=
0.15×VDD_EXT
The default
function is
STATUS after
startup.
PCM_
CLK
26
O
PCM clock signal
The default
function is RI after
startup.
PCM_
OUT
41
O
PCM serial data output
If unused, keep
these pins open.
PCM_IN
42
I
PCM serial data input
PIN NAME
PIN NO.
Function After Reset
Alternate Function
1)
STATUS/PCM_SYNC
12
STATUS
PCM_SYNC
DTR/SIM1_PRESENCE
20
DTR
SIM1_PRESENCE
DCD/SIM2_RST
25
DCD
SIM2_RST
RI/PCM_CLK
26
RI
PCM_CLK
Mode
Function
Normal Operation
GSM/GPRS
Sleep
After enabling sleep mode by ―AT+QSCLK=1‖, the module
will automatically go into Sleep Mode if DTR is set to high
level and there is no interrupt (such as GPIO interrupt or
data on UART port). In this case, the current consumption
of module will be reduced to the minimal level. During
NOTE

Quectel M35 Specifications

General

Brand	Quectel
Model	M35
Category	Control Unit
Language	English