MESSI-V M2 I/O APPLICATION 4G LTE Module (NGFF type) Doc. Title MESSI-V M2 I/O APPLICATION Originator David Tsui Concurrence Achau Lee Approved by Version Date 2013/08/08 1/13 Rev1.
Revision History Rev 1.0 Draft/Changes First version released (DVT phase) 2/13 Date 2013/01/10 Rev1.
Introduction: MESSI-V M2 is an advanced and compact NGFF board / module which supports LTE category 3 (CAT-3) throughputs. MESSI-V M2 supports for UART, USB2.0, USIM and antenna interface. The details of I/O interfaces are described in the sections as followings: UART Interface USB2.0 Interface USIM Interface Power Input JTAG & Reset GPIO Antenna Interface Others 3/13 Rev1.
1. UART Interface MESSI-V M2 board supports one UART port for debugging and downloading. The baud rate speed is up to 115200bps. Signal level is 3.3V. If MESSI-V M2 module goes through standard RS-232 interface to connect with PC, It is recommended to use TI TRS3253EIRSMR for best baud rate to catch log file and download boot loader setting. Pin NO. Pin name Description 62 UART_RX UART receive input 64 UART_TX UART transmit output Figure1-1: UART block diagram.
2. USB 2.0 Interface The USB interface is compliant with Version 2.0 of the USB standard for high speed operation. The reference circuit is showing in Figure2-1as following. Pin NO. Pin name 7 USB_D+ 9 USB_D- Description Universal Serial BUS Figure2-1: USB connection 5/13 Rev1.
3. USIM interface The USIM pins provide the connections necessary to interface to a USIM socket located on the host device. Voltage levels over this interface comply with 3GPP standards. MSEEI module outputs a SIMPWR power rail 1.8V and 3V. Pin NO. Pin name Description 36 SIMPWR 1.8V/3V output to SIM card. 34 SIMIO 32 SIMCLK SIM clock 30 SIMRST SIM reset SIM data IO The reference circuit is showing in Figure3-1as following. Figure3-1: USIM card connection 6/13 Rev1.
4. Power Input MESSI-V M2 power input pin is VBAT. The power input range is from 3.4V to 5V with USB, external power or Battery. Figure 4-1 shows external power source to MESSI module. Pin NO. Pin name 2 3.3V 4 3.3V 70 3.3V 72 3.3V 74 3.3V Description Power input Figure4-1: External power for MESSI-V M2 board. 7/13 Rev1.
5. JTAG & Reset Emulation JTAG is used to debug and run SW on embedded MIPS processors. MESSI has a single Reset input (RSTN). This signal should be connected and driven by the power management unit or the host application processor, depending on the usage scenario. Pin NO. Pin name Description 42 TCK Clock 43 TMS Test Mode 47 TDI Input Data 49 TDO Output Data 53 EJTAG_TRST EJTAG Reset 67 TRST MESSI Reset Input(1.8V) Figure 6-1: JTAG connection 8/13 Rev1.
6. GPIOs MESSI-V M2 has various software-controlled general purpose IO (GPIO) pins which are listed below. The user can use these GPIOs for any general purpose their design calls for. If the GPIO is not in use, it is recommended to leave the pin as floating. Pin NO. Pin name Description 8 GPIO4 3.3V General Purpose I/O 35 GPIO20 1.8V General Purpose I/O 31 GPIO19 1.8V General Purpose I/O 29 GPIO18 1.8V General Purpose I/O 20 GPIO11 1.8V General Purpose I/O 22 GPIO10 1.
7. Antenna Interface MESSI-V M2 support MIMO antenna. The reference RF cable SPEC is down below. Pin NO. Pin name ANT 1 RXTX ANT 2 RXONLY Description RF Transmission and RF receive chain RF receive chain Figure 8-1: MIMO antenna connection 10/13 Rev1.
8. Others The following Pins are reserved for future update. The user can leave these pin as floating. Pin NO. Pin name Description 23 PMU SLEEP/PWR_REQ Reserved 66 SCR_DTCT Reserved 9. Mechanical Outline Figure9-1: Messi-V M2 Mechanical 11/13 Rev1.
Federal Communication Commission Interference Statement This device complies with Part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation. This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to Part 15 of the FCC Rules.
Radiation Exposure Statement: This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment. This equipment should be installed and operated with minimum distance 20cm between the radiator & your body. This device is intended only for OEM integrators under the following conditions: 1) The antenna must be installed such that 20 cm is maintained between the antenna and users, and 2) The transmitter module may not be co-located with any other transmitter or antenna.
