Integration Manual
Table Of Contents
- Contents
- 1 System description
- 1.1 Overview
- 1.2 Architecture
- 1.3 Pin-out
- 1.4 Operating modes
- 1.5 Supply interfaces
- 1.5.1 Module supply input (VCC)
- 1.5.1.1 VCC supply requirements
- 1.5.1.2 VCC current consumption in 2G connected mode
- 1.5.1.3 VCC current consumption in 3G connected mode
- 1.5.1.4 VCC current consumption in LTE connected mode
- 1.5.1.5 VCC current consumption in cyclic low power idle mode / active mode
- 1.5.1.6 VCC current consumption in fixed active mode
- 1.5.2 Generic digital interfaces supply output (V_INT)
- 1.5.1 Module supply input (VCC)
- 1.6 System function interfaces
- 1.7 Antenna interfaces
- 1.8 SIM interfaces
- 1.9 Data communication interfaces
- 1.10 eMMC interface
- 1.11 Digital Audio interfaces
- 1.12 ADC interfaces
- 1.13 General Purpose Input/Output
- 1.14 Reserved pins (RSVD)
- 1.15 System features
- 1.15.1 Network indication
- 1.15.2 Jamming detection
- 1.15.3 IP modes of operation
- 1.15.4 Dual stack IPv4 and IPv6
- 1.15.5 Embedded TCP/IP and UDP/IP
- 1.15.6 Embedded FTP and FTPS
- 1.15.7 Embedded HTTP and HTTPS
- 1.15.8 SSL and TLS
- 1.15.9 Firmware update Over AT (FOAT)
- 1.15.10 Firmware update Over The Air (FOTA)
- 1.15.11 Power Saving
- 2 Design-in
- 2.1 Overview
- 2.2 Supply interfaces
- 2.2.1 Module supply (VCC)
- 2.2.1.1 General guidelines for VCC supply circuit selection and design
- 2.2.1.2 Guidelines for VCC supply circuit design using a switching regulator
- 2.2.1.3 Guidelines for VCC supply circuit design using a LDO linear regulator
- 2.2.1.4 Guidelines for VCC supply circuit design using a rechargeable battery
- 2.2.1.5 Guidelines for VCC supply circuit design using a primary battery
- 2.2.1.6 Additional guidelines for VCC supply circuit design
- 2.2.1.7 Guidelines for the external battery charging circuit
- 2.2.1.8 Guidelines for external charging and power path management circuit
- 2.2.1.9 Guidelines for removing VCC supply
- 2.2.1.10 Guidelines for VCC supply layout design
- 2.2.1.11 Guidelines for grounding layout design
- 2.2.2 Generic digital interfaces supply output (V_INT)
- 2.2.1 Module supply (VCC)
- 2.3 System functions interfaces
- 2.4 Antenna interface
- 2.5 SIM interfaces
- 2.6 Data communication interfaces
- 2.7 eMMC interface
- 2.8 Digital Audio interface
- 2.9 ADC interfaces
- 2.10 General Purpose Input/Output
- 2.11 Reserved pins (RSVD)
- 2.12 Module placement
- 2.13 Module footprint and paste mask
- 2.14 Thermal guidelines
- 2.15 Design-in checklist
- 3 Handling and soldering
- 4 Approvals
- 5 Product testing
- 6 FCC Notes
- Appendix
- Glossary
- Related documents
- Revision history
- Contact
TOBY-L3 series - System Integration Manual
TSD-19090601 - R13 System Integration Manual Page 38 of 143
+CFUN AT command (see the TOBY-L3 series AT Commands Manual [2])
reboot command on the Linux shell
4
The methods listed above represent appropriate reset (reboot) events, triggering an appropriate “internal”
or “software” reset of the module: the current parameter settings are saved in the module’s non-volatile
memory and a clean network detach is performed.
An abrupt hardware reset occurs on TOBY-L3 series modules when a low level is applied on the RESET_N
input pin. In this case, the current parameter settings are not saved in the module’s non-volatile memory
and a clean network detach is not performed.
☞ It is recommended to avoid an abrupt hardware reset of the module by forcing a low level on the
RESET_N input during modules normal operation: the RESET_N line should be set low only if reset via
AT command or Linux shell 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 TOBY-L3 series AT Commands Manual [2].
As shown in Figure 16, the RESET_N input pins are equipped with an internal pull-up to the internally
generated voltage supply. For more electrical characteristics details see the TOBY-L3 series Data Sheet [1].
23
RESET_N
TOBY-L3 series
VCC_INT
200k
Baseband
Processor
Reset
Reset
Power
Management
Figure 16: TOBY-L3 series RESET_N input equivalent circuit description
1.6.4 Module / host configuration selection
☞ Host Select pins are not supported by the "0x" product feature version.
TOBY-L3 series modules include two 1.8 V digital pins (HOST_SELECT0, HOST_SELECT1), which can be
configured for External Interrupt detection or as GPIO by means of the open CPU API.
4
Not supported by "0x" product feature version