Terminology - Silicon Laboratories Si47 Series Programming Manual

3. Terminology

SEN—Serial enable pin, active low; used as device select in 3-wire and SPI operation and address selection in

2-wire operation.
SDIO—Serial data in/data out pin.

SCLK—Serial clock pin.

RST or RSTb—Reset pin, active low

RCLK—External reference clock

GPO—General purpose output

CTS—Clear to send

STC—Seek/Tune Complete

NVM—Non-volatile internal device memory

Device—Refers to the FM Transmitter/AM/FM/SW/LW/WB Receiver

System Controller—Refers to the system microcontroller

CMD—Command byte

COMMANDn—Command register (16-bit) in 3-Wire mode (n = 1 to 4)

ARGn—Argument byte (n = 1 to 7)

STATUS—Status byte

RESPn—Response byte (n = 1 to 15)

RESPONSEn—Response register (16-bit) in 3-Wire mode (n = 1 to 8)

Rev. 0.8
AN332
5