MTi 1-series User Manual
Xsens MTi User Manual Repository
Development Kit User Manual
Copyright © 2021 Xsens
Page 74
SYNC_IN
Sync
interface
Accepts a trigger input to request the latest available data
message
SYNC_OUT
N/A
SYNC_PPS
Pulse Per Second output of GNSS module
AUX_RxD
Auxiliary
UART
interface
Auxiliary UART data input
AUX_TxD
Auxiliary UART data output
AUX_nCS
Auxiliary SPI
interface
Auxiliary SPI chip select
AUX_MOSI
Auxiliary SPI serial data output (master)
AUX_MISO
Auxiliary SPI serial data input (master)
AUX_SCK
Auxiliary SPI serial clock
Power supplies
The MTi 1-series module requires two different power supplies: VDDIO (used for the MCU and
all IO) and VDDA (used as an analog supply for the sensing elements).
The Shield Board has five supply inputs:
USB: supplies both VDDIO and VDDA at 3.3V. Forces USB mode (SPI/I2C/UART interfaces
1.
not available).
5V (P101): supplies both VDDIO and VDDA at 3.3V. Forces USB mode (SPI/I2C/UART
2.
interfaces not available).
3V3 (P101): supplies VDDIO directly and overrides USB mode (SPI/I2C/UART interfaces
3.
available).
VDDIO (J100): supplies VDDIO directly, overrides all other VDDIO supplies and overrides
4.
USB mode (SPI/I2C/UART interfaces available).
VDDA (J100): supplies VDDA directly.
5.
Note: Only supplying VDDIO (through 3V3 (P101) or VDDIO (J100)) without supplying VDDA is
not recommended. The only single supply options are USB and 5V (P101), but in both cases the
Shield Board will be forced into USB mode.