Integration Manual
Table Of Contents
- Preface
- 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 or 3.3Vaux)
- 1.5.1.1 VCC or 3.3Vaux supply requirements
- 1.5.1.2 VCC or 3.3Vaux current consumption in 2G connected-mode
- 1.5.1.3 VCC or 3.3Vaux current consumption in 3G connected mode
- 1.5.1.4 VCC or 3.3Vaux current consumption in LTE connected-mode
- 1.5.1.5 VCC or 3.3Vaux current consumption in cyclic idle/active mode (power saving enabled)
- 1.5.1.6 VCC or 3.3Vaux current consumption in fixed active-mode (power saving disabled)
- 1.5.2 RTC supply input/output (V_BCKP)
- 1.5.3 Generic digital interfaces supply output (V_INT)
- 1.5.1 Module supply input (VCC or 3.3Vaux)
- 1.6 System function interfaces
- 1.7 Antenna interface
- 1.8 SIM interface
- 1.9 Data communication interfaces
- 1.10 Audio
- 1.11 General Purpose Input/Output
- 1.12 Mini PCIe specific signals (W_DISABLE#, LED_WWAN#)
- 1.13 Reserved pins (RSVD)
- 1.14 Not connected pins (NC)
- 1.15 System features
- 1.15.1 Network indication
- 1.15.2 Antenna supervisor
- 1.15.3 Jamming detection
- 1.15.4 IP modes of operation
- 1.15.5 Dual stack IPv4/IPv6
- 1.15.6 TCP/IP and UDP/IP
- 1.15.7 FTP
- 1.15.8 HTTP
- 1.15.9 SSL / TLS
- 1.15.10 Bearer Independent Protocol
- 1.15.11 Wi-Fi integration
- 1.15.12 Firmware update Over AT (FOAT)
- 1.15.13 Firmware update Over The Air (FOTA)
- 1.15.14 Smart temperature management
- 1.15.15 SIM Access Profile (SAP)
- 1.15.16 Power saving
- 2 Design-in
- 2.1 Overview
- 2.2 Supply interfaces
- 2.2.1 Module supply (VCC or 3.3Vaux)
- 2.2.1.1 General guidelines for VCC or 3.3Vaux supply circuit selection and design
- 2.2.1.2 Guidelines for VCC or 3.3Vaux supply circuit design using a switching regulator
- 2.2.1.3 Guidelines for VCC or 3.3Vaux supply circuit design using a Low Drop-Out linear regulator
- 2.2.1.4 Guidelines for VCC supply circuit design using a rechargeable Li-Ion or Li-Pol battery
- 2.2.1.5 Guidelines for VCC supply circuit design using a primary (disposable) battery
- 2.2.1.6 Additional guidelines for VCC or 3.3Vaux supply circuit design
- 2.2.1.7 Guidelines for external battery charging circuit
- 2.2.1.8 Guidelines for external battery charging and power path management circuit
- 2.2.1.9 Guidelines for VCC or 3.3Vaux supply layout design
- 2.2.1.10 Guidelines for grounding layout design
- 2.2.2 RTC supply output (V_BCKP)
- 2.2.3 Generic digital interfaces supply output (V_INT)
- 2.2.1 Module supply (VCC or 3.3Vaux)
- 2.3 System functions interfaces
- 2.4 Antenna interface
- 2.5 SIM interface
- 2.6 Data communication interfaces
- 2.7 Audio interface
- 2.8 General Purpose Input/Output
- 2.9 Mini PCIe specific signals (W_DISABLE#, LED_WWAN#)
- 2.10 Reserved pins (RSVD)
- 2.11 Module placement
- 2.12 TOBY-L2 series module footprint and paste mask
- 2.13 MPCI-L2 series module installation
- 2.14 Thermal guidelines
- 2.15 ESD guidelines
- 2.16 Schematic for TOBY-L2 and MPCI-L2 series module integration
- 2.17 Design-in checklist
- 3 Handling and soldering
- 4 Approvals
- 4.1 Product certification approval overview
- 4.2 US Federal Communications Commission notice
- 4.3 Innovation, Science and Economic Development Canada notice
- 4.4 Brazilian Anatel certification
- 4.5 European Conformance CE mark
- 4.6 Australian Regulatory Compliance Mark
- 4.7 Taiwanese NCC certification
- 4.8 Japanese Giteki certification
- 5 Product testing
- Appendix
- A Migration between TOBY-L1 and TOBY-L2
- B Glossary
- Related documents
- Revision history
- Contact
TOBY-L2 and MPCI-L2 series - System Integration Manual
UBX-13004618 - R26 System description
Page 56 of 162
1.9.3 DDC (I
2
C) interface
The I
2
C bus compatible Display Data Channel interface is not available on the MPCI-L2 series modules.
The I
2
C bus compatible Display Data Channel interface is not supported by the TOBY-L2 series modules
“00”, “01”, “60” and TOBY-L201-02S product versions.
The SDA and SCL pins of TOBY-L2 series modules represent an I
2
C bus compatible Display Data Channel (DDC)
interface for the communication with external I
2
C devices as audio codecs: an I
2
C master can communicate with
more I
2
C slaves in accordance to the I
2
C bus specifications [13].
The AT commands interface is not available on the DDC (I
2
C) interface.
DDC (I
2
C) slave-mode operation is not supported: the TOBY-L2 series module can act as I
2
C master only.
The DDC (I
2
C) interface pads of the module, serial data (SDA) and serial clock (SCL), are open drain output and
external pull up resistors must be used conforming to the I
2
C bus specifications [13].
1.9.4 Secure Digital Input Output interface (SDIO)
Secure Digital Input Output interface is not available on MPCI-L2 series modules.
Secure Digital Input Output interface is not supported by TOBY-L2 “00”, “01”, “60” product versions.
TOBY-L2 series modules include a 4-bit Secure Digital Input Output interface (SDIO_D0, SDIO_D1, SDIO_D2,
SDIO_D3, SDIO_CLK, SDIO_CMD) designed to communicate with an external u-blox short range Wi-Fi module:
the TOBY-L2 cellular module acts as an SDIO host controller which can communicate over the SDIO bus with a
compatible u-blox short range Wi-Fi module acting as SDIO device.
The SDIO interface is the only one interface of TOBY-L2 series modules dedicated for communication between the
u-blox cellular module and the u-blox short range Wi-Fi module. The AT commands interface is not available on
the SDIO interface of TOBY-L2 series modules.
The SDIO interface supports 50 MHz bus clock frequency, which allows a data throughput of 200 Mb/s.
Combining a u-blox cellular module with a u-blox short range communication module gives designers full access
to the Wi-Fi module directly via the cellular module, so that a second interface connected to the Wi-Fi module is
not necessary. AT commands via the AT interfaces of the cellular module (UART, USB) allows a full control of the
Wi-Fi module from any host processor, because Wi-Fi control messages are relayed to the Wi-Fi module via the
dedicated SDIO interface (for more details, see the Wi-Fi AT commands in the u-blox AT Commands Manual [3]).
u-blox has implemented special features in the cellular modules to ease the design effort for the integration of a
u-blox cellular module with a u-blox short range Wi-Fi module to provide Router functionality (for more details,
see the Wi-Fi / Cellular Integration Application Note [15]).
Additional custom function over GPIO pins is designed to improve the integration with u-blox Wi-Fi modules:
Wi-Fi enable Switch-on / switch-off the Wi-Fi
GPIOs are not supported by TOBY-L2 “00”, “01” and “60” product versions, except for the Wireless Wide
Area Network status indication configured on GPIO1 pin.
GPIOs are not available on MPCI-L2 series modules.