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User Manual
1. Introduction
The M14Q2 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 (10Mbps downlink, 5Mbps uplink)
Supports LTE B2/4/12
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
–
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
–
GPIOs
–
ADC
–
PCM/I2S
–
JTAG interface
