6 SPI Command Sequence Examples
The SPI command set is optimized for a maximum data rate of 500 Kbit/s. Start each
communication by setting pin 27 (NSS) to LOW. For more details on pin 27 (NSS), refer to
the ATA8510/ATA8515 UHF ASK/FSK Transceiver Data Sheet (9315). After a start-up time, the command byte
is transmitted. This byte indicates the desired user action, such as reading out the
received RF data. The command byte is followed by the bytes needed to form the desired
command.
| Host | cmd | byte 1 | — | byte N |
|---|---|---|---|---|
| ATA8510 | events.system |
events.events |
— | Response |
The first two response bytes (events.system and
events.events) contain information about Microchip ATA8510 to get
the current system and events status.
In the tables below, the user needs only the Write SRAM/Register
(command ID 0x07) and Read SRAM/Register (command ID 0x08) SPI
commands. For a description of the structure and an overview of all supported SPI
commands, refer to the ATA8510/15 Industrial User’s Guide (DS50003142).