TOBY-L1 and MPCI-L1 series - System Integration Manual
UBX-13001482 - R04
Advance Information
System description
Page 15 of 90
1.4
Operating modes
The TOBY-L1 and MPCI-L1 series modules have several operating modes. The operating modes are defined in
Table 5 and described in details in Table 6, providing general guidelines for operation.
General Status
Operating Mode
Definition
Power-down
Not-Powered Mode
VCC
or
3.3Vaux
supply not present or below operating range: module is switched off.
Power-Off Mode
VCC
or
3.3Vaux
supply within operating range and module is switched off.
Normal Operation
Idle-Mode
Module processor core runs with 32 kHz reference generated by the internal oscillator.
Active-Mode
Module processor core runs with 26 MHz reference generated by the internal oscillator.
Connected-Mode
RF Tx/Rx data connection enabled and processor core runs with 26 MHz reference.
Table 5: Module operating modes definition
Operating Mode
Description
Transition between operating modes
Not-Powered Mode
Module is switched off.
Application interfaces are not accessible.
When
VCC
or
3.3Vaux
supply is removed, the TOBY-L1 /
MPCI-L1 series modules enter not-powered mode.
When in not-powered mode, the TOBY-L1 modules
cannot be switched on by a low level on
PWR_ON
input
and enter power-off mode after applying
VCC
supply.
When in not-powered mode, the MPCI-L1 modules enter
active mode after applying
3.3Vaux
supply.
Power-Off Mode
Module is switched off: normal shutdown by an
appropriate power-off event (refer to 1.6.2).
Application interfaces are not accessible.
MPCI-L1 modules do not support Power-Off Mode.
When the TOBY-L1 modules are switched off by an
appropriate power-off event (refer to 1.6.2), the modules
enter power-off mode from active-mode.
When in power-off mode, the TOBY-L1 modules can be
switched on by a low level on
PWR_ON
, input (refer to
1.6.1): module switches from power-off to active-mode.
When
VCC
supply is removed, the TOBY-L1 series module
switches from power-off mode to not-powered mode.
Idle-Mode
Application interfaces are disabled: the module does
not accept data signals from an external device
connected to the module.
The module automatically enters idle-mode
whenever possible if power saving is enabled by
AT+UPSV (see
TOBY
-
L1 / MPCI-L1 series AT
Commands Manual
[3]) reducing current
consumption (see 1.5.1.3).
Power saving configuration is not enabled by default:
it can be enabled by AT+UPSV (see the
TOBY
-
L1 /
MPCI-L1 series AT Commands Manual
The TOBY-L1 and MPCI-L1 modules automatically switch
from active-mode to idle-mode whenever possible if power
saving is enabled (see 1.5.1.3, 1.9.1.3 and
TOBY
-
L1 /
MPCI-L1 series AT Commands Manual
[3], AT+UPSV).
The module wakes up from idle-mode to active-mode in
these events:
•
Automatic periodic monitoring of the paging channel
for the paging block reception according to network
conditions (see 1.5.1.3)
•
The connected USB host forces a remote wakeup of
the module as USB device (see 1.9.1.3)
Active-Mode
The module is ready to accept data signals from an
external device unless power saving configuration is
enabled by AT+UPSV (refer to the section 1.9.1.3
and the
TOBY
-
L1 / MPCI-L1 series AT Commands
Manual
When the TOBY-L1 modules are switched on by an
appropriate power-on event (refer to 2.3.1), the modules
enter active-mode from power-off mode.
MPCI-L1 modules enter active mode from not-powered
mode, after applying
3.3Vaux
supply.
If power saving configuration is enabled by AT+UPSV, the
module automatically switches from active to idle-mode
whenever possible and it wakes up from idle to active-
mode in the events listed above (refer to idle to active
transition description).
When a RF Tx/Rx data connection is initiated, the module
switches from active-mode to connected-mode.
