M10477 Datasheet, PDF (11/29 Pages) List of Unclassifed Manufacturers – GPS RADIONOVA® RF Antenna Module

®
m2m
Host SPI Interface (Slave)
GPS RADIONOVA^® RF Antenna Module
Part No. M10477
The host interface SPI is a slave mode SPI.
The 4 SPI pins are:
• Pin 13: slave SPI data output (MISO)
• Pin 12: slave SPI data input (MOSI)
T _{• Pin 14: slave SPI clock input (CLK)}
F _{• Piin 16: slave SPI chip select (CS#) active low}
A _{The maximum clock frequency supported is 6.8MHz.}
R _{To allow the module to awaken or signal the host that messages are ready within the GSD4e, the GSD4e}
software can be programmed or configured to generate a “Message Waiting” signal on a pre-assigned GPIO.
D _{While the Host SPI serial Input and Host SPI clock Input are 3.3V compatible, if Host SPI serial Input is driven}
from a source higher than 1.8V, excess leakage current may flow through the ~80kΩ internal pull-up resistor.
Y _{Host SPI serial Output has maximum 1.8V logic high output level and may require an external level shifter to}
interface with a 3.3V input.
LIMINAR _{The following internal operation details are provided to assist with implentation troubleshooting:}
E _{• TX and RX each have independent 1024 byte FIFO buffers}
• RX and TX each have independent software-specified two byte idle patterns
R_{• TX FIFO is disabled when empty and transmits its idle pattern until re-enabled}
P_{• RX FIFO detects a software specific number of idle pattern repeats and then disables FIFO input until}
the idle pattern is broken
• FIFO buffers can generate an interrupt at any fill level
• SPI detects synchronization errors and can be reset by software.
Antennas for Wireless M2M Applications
11
Product Specification 12MD-0049-0.6-PS