UC-00-M33 EN R1.0 Hardware 7
Table 2-1 Pin Description
GNSS antenna signal input
Antenna short circuit detection; active low
External LNA power supply
Chip select pin for SPI slave
Master Out / Slave In. This pin is used to
receive data in slave mode.
Clock input pin for SPI slave
Master In / Slave Out. This pin is used to
transmit data in slave mode.
Not recommended to take VCC_RF as ANT_BIAS to feed the antenna. See section 3.2 for more
details.