User's Manual

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User Manual
1. Introduction
The M14Q2SG is a Cat. 1 LTE modem which incorporates an application CPU subsystem and a host of
peripheral interfaces and functions uniquely designed to address the power/performance/cost
requirements of IoT and M2M applications. The chip is based on Qualcomm’s MDM architecture which
offers OFDMA-related software based signal processing capabilities that significantly exceed traditional
communications ARM cores.
The CPU subsystem features a high performance Cortex A7 microprocessor running a Linux OS with a
variety of host interfaces including USB 2.0, SGMII, SPI, UART, PCM, I2C, HSIC, USIM & SDC. The module
supports integrated VoLTE functionality, with a variety of narrow- and wide-band CODECs and full IMS
signaling.
1.1. Features

3GPP category support: LTE Cat. 1 with 10/5 Mbps for DL/UL

Supports LTE B2/4/5/12/25/26

Supports WCDMA B2/5

Supports GPS/GLONASS

Ultra-high-performance Cortex A7 microprocessor

Modem subsystem (MSS)

Integrated support for VoLTE

Resource and power management (RPM) subsystem

Optimized for M2M and IoT markets

Interfaces
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HS USB 2.0 with integrated PHY
–
SGMII interface
–
HSIC interface
–
Dual UART interfaces (4 bit and 2 bit) for data transfer and diagnostic tools
–
SDC1: First SPI interface
–
I2C: Second SPI interface
–
USIM interface
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GPIOs
–
ADC
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PCM/I2S
–
JTAG interface