TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R07
Advance Information
System description
Page 34 of 158
1.6.3
Module reset
TOBY-L2 and MPCI-L2 series modules can be properly reset (rebooted) by:
AT+CFUN command (see
u-blox AT Commands Manual
MPCI-L2 series modules can be additionally properly reset (rebooted) by:
AT+CPWROFF command (see
u-blox AT Commands Manual
[3]): the behavior differs than TOBY-L2 series, as
MPCI-L2 modules will reboot rather than remain switched off due to modules’ internal configuration.
In the cases listed above an “internal” or “software” reset of the module is executed: the current parameter
settings are saved in the module’s non-volatile memory and a proper network detach is performed.
An abrupt hardware reset occurs on TOBY-L2 and MPCI-L2 series modules when a low level is applied on the
RESET_N
or
PERST#
input pin for a specific time period. In this case, the current parameter settings are not
saved in the module’s non-volatile memory and a proper network detach is not performed.
It is highly recommended to avoid an abrupt hardware reset of the module by forcing a low level on the
RESET_N
or
PERST#
input during modules normal operation: the
RESET_N
or
PERST#
line should be set
low only if reset or shutdown via AT commands fails or if the module does not provide a reply to a specific
AT command after a time period longer than the one defined in the
u-blox AT Commands Manual
As described in Figure 17, the
RESET_N
and
PERST#
input pins are equipped with an internal pull-up to the
VCC
supply in the TOBY-L2 series and to the 3.3 V in the MPCI-L2 series.
Baseband
Processor
23
RESET_N
TOBY-L2 series
VCC
Reset
Power
Management
Reset
50k
Baseband
Processor
22
PERST#
MPCI-L2 series
Reset
Power
Management
Reset
45k
3.3 V
Figure 17: TOBY-L2 and MPCI-L2 series RESET_N and PERST# input equivalent circuit description
For more electrical characteristics details see
TOBY-L2 Data Sheet
[1] and
MPCI-L2 Data Sheet
1.6.4
Module configuration selection by host processor
The
HOST_SELECT0
and
HOST_SELECT1
pins are not available on MPCI-L2 series modules.
The selection of the module configuration by the host application processor over the
HOST_SELECT0
and
HOST_SELECT1
pins is not supported by TOBY-L2 “00”, “01”, and “50” product versions.
TOBY-L2 series modules include two input pins (
HOST_SELECT0
and
HOST_SELECT1
) for the selection of the
module configuration by the host application processor.