1. Introduction
The M14Q2F 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 Qualcomms 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 B2/4/5/12
Supports WCDMA B2/5
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