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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
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SGMII interface
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HSIC interface
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Dual UART interfaces (4 bit and 2 bit) for data transfer and diagnostic tools
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SDC1: First SPI interface
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I2C: Second SPI interface
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USIM interface
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GPIOs
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ADC
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PCM/I2S
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JTAG interface
