User Manual

LARA-R2 series - System Integration Manual

UBX-16010573 - R02 Objective Specification System description

Page 49 of 148

1.9.3 HSIC interface

The HSIC interface is not supported by “02” modules product versions except for diagnostic purpose.

1.9.3.1 HSIC features

LARA-R2 series modules include a USB High-Speed Inter-Chip compliant interface with maximum 480 Mb/s data

rate according to the High-Speed Inter-Chip USB Electrical Specification Version 1.0 [10] and USB Specification

Revision 2.0 [9]. The module itself acts as a device and can be connected to any compatible host.

The HSIC interface provides:

 AT command mode

 Data mode and Online command mode

 FW upgrades by means of the FOAT feature (see 1.14.13 and Firmware update application note [23])

 FW upgrades by means of the u-blox EasyFlash tool (see the Firmware update application note [23])

 Trace log capture (diagnostic purpose)

The HSIC interface consists of a bi-directional DDR data line (HSIC_DATA) for transmitting and receiving data

synchronously with the bi-directional strobe line (HSIC_STRB).

The modules include also the HOST_SELECT pin to select the module / host application processor configuration:

the pin is available to select, enable, connect, disconnect and subsequently re-connect the HSIC interface.

The USB interface is controlled and operated with:

 AT commands according to 3GPP TS 27.007 [6], 3GPP TS 27.005 [7]

 u-blox AT commands (for the complete list and syntax see the u-blox AT Commands Manual [2])

See the u-blox AT Commands Manual [2] for the definition of the command mode, data mode, and online command mode.