Protocol decoders

This is a list of supported protocol decoders (PDs) and decoders which we might want to write in the future (or users might want to contribute).

See Protocol decoder API for details on how the decoders work in sigrok, and Protocol decoder HOWTO for a quick introduction about how to write your own decoders.

Supported protocol decoders

Number of currently supported protocol decoders: 98.

Protocol	Category	Input IDs	Output IDs	Status	Full name	Description
AC '97	Audio	—	ac97	supported	Audio Codec '97	Audio and modem control for PC systems.
ADE77xx	Sensors	spi	ade77xx	supported	Analog Devices ADE77xx	Poly phase multifunction energy metering IC protocol.
ADF435x	RF	spi	adf435x	supported	Analog Devices ADF4350/1	Wideband synthesizer with integrated VCO.
ADNS-5020	Sensors	spi	adns5020	supported	Avago ADNS-5020 optical mouse sensor	Bidirectional command and data over an SPI-like protocol.
AM230x/DHTxx/RHTxx	Sensors	—	am230x	supported	Aosong AM230x/DHTxx	Aosong AM230x/DHTxx/RHTxx humidity/temperature sensor protocol.
ARM ETMv3	Flash/debug	uart	arm_etmv3	supported	ARM Embedded Trace Macroblock	Decode ETM instruction trace packets.
ARM ITM	Flash/debug	uart	arm_itm	supported	ARM Instrumentation Trace Macroblock	Trace data from Cortex-M / ARMv7m ITM module.
ARM TPIU	Flash/debug	uart	uart	supported	ARM Trace Port Interface Unit	Filter TPIU formatted trace data into separate streams.
ATSHA204A	Memory	i2c	atsha204a	supported	Microchip ATSHA204A	Microchip ATSHA204A CryptoAuthentication device.
AUD	Flash/debug	—	aud	supported	Advanced User Debugger	Renesas/Hitachi Advanced User Debugger (AUD) protocol.
AVR ISP	Flash/debug	spi	avr_isp	supported	AVR in-system programming	Protocol for in-system programming Atmel AVR MCUs.
AVR PDI	Flash/debug	—	avr_pdi	supported	Atmel Program and Debug Interface	Atmel proprietary interface for the ATxmega MCU.
CAN	Automotive	—	can	supported	Controller Area Network	Field bus protocol for distributed realtime control.
CEC	PC	—	cec	supported	HDMI-CEC	HDMI Consumer Electronics Control (CEC) protocol.
CFP	Networking	mdio	—	supported	100 Gigabit C form-factor pluggable	100 Gigabit C form-factor pluggable (CFP) protocol.
Counter	Misc	—	—	supported	Edge counter	Count number of edges.
DALI	Lighting	—	dali	supported	Digital Addressable Lighting Interface	DALI lighting control protocol.
DCF77	Time signal	—	dcf77	supported	DCF77 time protocol	European longwave time signal (77.5kHz carrier signal).
DMX512	Lighting	—	dmx512	supported	Digital MultipleX 512	Professional lighting control protocol.
DS1307	RTC	i2c	ds1307	supported	Dallas DS1307	Realtime clock module protocol.
DS243x	Memory	onewire_network	ds243x	supported	Maxim DS2432/DS2433	Maxim DS243x series 1-Wire EEPROM protocol.
DSI	Lighting	—	dsi	supported	Digital Serial Interface	DSI lighting control protocol.
EDID	PC	i2c	edid	supported	Extended Display Identification Data	Data structure describing display device capabilities.
24xx EEPROM	Memory	i2c	eeprom24xx	supported	24xx I²C EEPROM	24xx series I²C EEPROM protocol.
93Cxx EEPROM	Memory	microwire	eeprom93cxx	supported	93Cxx Microwire EEPROM	93Cxx series Microwire EEPROM protocol.
EM4100	RFID	—	em4100	supported	RFID EM4100	EM4100 100-150kHz RFID protocol.
EM4305	RFID	—	em4305	supported	RFID EM4205/EM4305	EM4205/EM4305 100-150kHz RFID protocol.
GPIB	Other	—	gpib	supported	General Purpose Interface Bus	IEEE-488 GPIB / HPIB protocol.
Gray code	Misc	—	graycode	supported	Gray code and rotary encoder	Accumulate rotary encoder increments, provide timing statistics.
Guess bitrate	Other	—	guess_bitrate	supported	Guess bitrate/baudrate	Guess the bitrate/baudrate of a UART (or other) protocol.
I2C	Embedded	—	i2c	supported	Inter-Integrated Circuit	Two-wire, multi-master, serial bus.
I2C demux	Embedded	i2c	runtime decision	supported	I2C demultiplexer	Demux I2C packets into per-slave-address streams.
I2C filter	Embedded	i2c	i2c	supported	I2C filter	Filter out addresses/directions in an I2C stream.
I2S	Audio	—	i2s	supported	Integrated Interchip Sound	Serial bus for connecting digital audio devices.
IEC	Other	—	gpib	supported	Commodore bus	Commodore serial IEEE-488 (IEC) bus protocol.
IR NEC	IR	—	ir_nec	supported	IR NEC	NEC infrared remote control protocol.
IR RC-5	IR	—	ir_rc5	supported	IR RC-5	RC-5 infrared remote control protocol.
Jitter	Misc	—	jitter	supported	Timing jitter calculation	Retrieves the timing jitter between two digital signals.
JTAG	Flash/debug	—	jtag	supported	Joint Test Action Group (IEEE 1149.1)	Protocol for testing, debugging, and flashing ICs.
JTAG / STM32	Flash/debug	jtag	jtag_stm32	supported	Joint Test Action Group / ST STM32	ST STM32-specific JTAG protocol.
JTAG / EJTAG (MIPS)	Flash/debug	jtag	jtag_ejtag	supported	Joint Test Action Group / EJTAG (MIPS)	MIPS EJTAG protocol.
LIN	Automotive	uart	lin	supported	Local Interconnect Network	Local Interconnect Network (LIN) protocol.
LM75	Sensors	i2c	lm75	supported	National LM75	National LM75 (and compatibles) temperature sensor protocol.
LPC	PC	—	lpc	supported	Low-Pin-Count	Protocol for low-bandwidth devices on PC mainboards.
Maple bus	Misc	—	maple_bus	supported	SEGA Maple bus	Maple bus peripheral protocol for SEGA Dreamcast.
MAX7219	Display	spi	max7219	supported	Maxim MAX7219/MAX7221	8-digit LED display driver.
DS28EA00	Sensors	onewire_network	maxim_ds28ea00	supported	Maxim DS28EA00 1-Wire digital thermometer	1-Wire digital thermometer with Sequence Detect and PIO.
MCS-48	CPU	—	mcs48	supported	Intel MCS-48	Intel MCS-48 external memory protocol.
MDIO	Networking	—	mdio	supported	Management Data Input/Output	Half-duplex sync serial bus for MII management between MAC and PHY.
Microwire	Embedded	—	microwire	supported	Microwire	3-wire, half-duplex, synchronous serial bus.
MIDI	Music	uart	midi	supported	Musical Instrument Digital Interface	Musical Instrument Digital Interface (MIDI) protocol.
Miller	Misc	—	miller	supported	Miller encoding	Miller encoding protocol.
MLX90614	Sensors	i2c	mlx90614	supported	Melexis MLX90614	Infrared Thermometer protocol.
Modbus	Misc	uart	modbus	supported	Modbus RTU over RS232/RS485	Modbus RTU protocol for industrial applications.
Morse	Misc	—	morse	supported	Morse code	Demodulated morse code protocol.
MRF24J40	RF	spi	mf24j40	supported	Microchip MRF24J40	IEEE 802.15.4 2.4 GHz RF tranceiver chip.
MXC6225XU	Sensors	i2c	mxc6225xu	supported	MEMSIC MXC6225XU	Digital Thermal Orientation Sensor (DTOS) protocol.
nRF24L01(+)	Wireless	spi	nrf24l01	supported	Nordic Semiconductor nRF24L01/nRF24L01+	2.4GHz transceiver chip.
Nunchuk	Other	i2c	nunchuk	supported	Nintendo Wii Nunchuk	Nintendo Wii Nunchuk controller protocol.
1-Wire link layer	Embedded	—	onewire_link	supported	1-Wire serial communication bus (link layer)	Bidirectional, half-duplex, asynchronous serial bus.
1-Wire network layer	Embedded	onewire_link	onewire_network	supported	1-Wire serial communication bus (network layer)	Bidirectional, half-duplex, asynchronous serial bus.
OOK	Misc	—	ook	supported	On-off keying	On-off keying protocol.
Oregon	Misc	ook	—	supported	Oregon Scientific	Oregon Scientific weather sensor protocol.
OOK visualisation	Misc	ook	ook	supported	On-off keying visualisation	OOK visualisation in various formats.
PAN1321	Bluetooth	uart	pan1321	supported	Panasonic PAN1321	Bluetooth RF module with Serial Port Profile (SPP).
Parallel	Misc	—	parallel	supported	Parallel sync bus	Generic parallel synchronous bus.
PS/2	PC	—	ps2	supported	PS/2	PS/2 keyboard/mouse interface.
PWM	Misc	—	pwm	supported	Pulse-width modulation	Analog level encoded in duty cycle percentage.
Qi	Misc	—	qi	supported	Qi charger protocol	Async serial protocol for Qi charger receivers.
RC encode	Wireless	—	—	supported	Remote control encoder	PT2262/HX2262/SC5262 remote control encoder protocol.
RFM12	Wireless	spi	rfm12	supported	RFM12 control protocol	HopeRF RFM12 wireless transceivers control protocol.
RGB LED (SPI)	LED	spi	rgb_led_spi	supported	RGB LED string decoder (SPI)	RGB LED string protocol (RGB values clocked over SPI).
RGB LED (WS281x)	LED	—	rgb_led_ws281x	supported	RGB LED string decoder (WS281x)	RGB LED string protocol (WS281x).
RTC-8564	RTC	i2c	rtc8564	supported	Epson RTC-8564 JE/NB	Realtime clock module protocol.
SDA2506	Memory	—	sda2506	supported	Siemens SDA 2506-5	Serial nonvolatile 1-Kbit EEPROM.
SD card (SD mode)	Memory	—	sdcard_sd	supported	Secure Digital card (SD mode)	Secure Digital card (SD mode) low-level protocol.
SD card (SPI mode)	Memory	spi	sdcard_spi	supported	Secure Digital card (SPI mode)	Secure Digital card (SPI mode) low-level protocol.
S/PDIF	Audio	—	spdif	supported	Sony/Philips Digital Interface Format	Serial bus for connecting digital audio devices.
SPI	Embedded	—	spi	supported	Serial Peripheral Interface	Full-duplex, synchronous, serial bus.
SPI flash	SPI flash	spi	spiflash	supported	SPI flash chips	xx25 series SPI (NOR) flash chip protocol.
SSI32	Misc	spi	ssi32	supported	Synchronous Serial Interface (32bit)	Synchronous Serial Interface (32bit) protocol.
ST7735	Display	—	st7735	supported	Sitronix ST7735	Sitronix ST7735 TFT controller protocol.
Stepper motor	Motors	—	stepper_motor	supported	Stepper motor position / speed	Absolute position and movement speed from step/dir.
SWD	Flash/debug	—	swd	supported	Serial Wire Debug	Two-wire protocol for debug access to ARM CPUs.
SWIM	Flash/debug	—	swim	supported	STM8 SWIM bus	STM8 Single Wire Interface Module (SWIM) protocol.
T55xx	RFID	—	t55xx	supported	RFID T5xx	T55xx 100-150kHz RFID protocol.
TI TCA6408A	I/O expander	i2c	tca6408a	supported	Texas Instruments TCA6408A	Texas Instruments TCA6408A 8-bit I²C I/O expander.
Timing	Misc	—	timing	supported	Timing calculation	Calculate time between edges.
TI TLC5620	DAC	—	tlc5620	supported	Texas Instruments TLC5620	Texas Instruments TLC5620 8-bit quad DAC.
UART	Embedded	—	uart	supported	Universal Asynchronous Receiver/Transmitter	Asynchronous, serial bus.
USB packet	USB	usb_signalling	usb_packet	supported	Universal Serial Bus (LS/FS) packet	USB (low-speed and full-speed) packet protocol.
USB PD	USB	—	usb_pd	supported	USB Power Delivery	USB Power Delivery protocol.
USB request	USB	usb_packet	usb_request	supported	Universal Serial Bus (LS/FS) transaction/request	USB (low-speed and full-speed) transaction/request protocol.
USB signalling	USB	—	usb_signalling	supported	Universal Serial Bus (LS/FS) signalling	USB (low-speed and full-speed) signalling protocol.
Wiegand	RFID	—	wiegand	supported	Wiegand interface	Wiegand interface for electronic entry systems.
X2444M/P	Memory	spi	x2444m	supported	Xicor X2444M/P	Xicor X2444M/P nonvolatile static RAM protocol.
XFP	Networking	i2c	xfp	supported	10 Gigabit Small Form Factor Pluggable Module (XFP)	Data structure describing device capabilities.
Z80	CPU	—	z80	supported	Zilog Z80 CPU	Zilog Z80 microprocessor disassembly.

Possible candidates for future protocol decoders

Protocol	Category	Input ID(s)	Output ID(s)	Status	Description	Comments
SA8807A	Displays	spi		0%	SPI-attached LCD. Datasheet: Sames SA8807A.
EA eDIPTFT43-A	Displays	i2c		0%	I2C-attached LCD. Datasheet: EA eDIPTFT43-A.
Analog Devices AD7291	ADC	i2c		0%	I2C-attached ADC. Datasheet: Analog Devices AD7291.
Analog Devices ADS1258	ADC	spi	ads1258	0%	SPI-attached ADC.	Planned (Uwe Hermann).
Microchip MCP3901	ADC	spi	mcp3901	0%	Can be controlled via a parallel protocol, or SPI, or I2C.	Planned (Uwe Hermann).
JTAG / TMPA9xx	Flash/debug	jtag	jtag_tmpa9xx	0%	Toshiba TMPA9xx specific JTAG protocol details.
USB transfer	USB	usb_request	usb_transfer	0%
USB / HID	USB	usb_transfer	usb_hid	0%
USB / CDC	USB	usb_transfer	usb_cdc	0%
USB / USBTMC	USB	usb_transfer	usb_usbtmc	0%
Dallas DS1985	Other	onewire_network		0%	Dallas DS1985 iButton (1-Wire) device.	Planned (Uwe Hermann).
UNI/O	Embedded	—		0%
SSI	Embedded	—		0%	Synchronous Serial Interface
CompactFlash	Memory	—		0%
MMC	Memory	—		0%
Memory Stick	Memory	—		0%
SmartMedia	Memory	—		0%
xD-Picture Card	Memory	—		0%
ISO 7816	Smartcards	—		0%
FlexRay	Automotive	—		70%	FlexRay is an automotive network communications protocol.	Work in progress (Stephan Thiele).
AVR TPI	Flash/debug	—		0%	Atmel Tiny Programming Interface (TPI) protocol.
FWH	PC	—		0%
ISA	PC	—		0%
PCI	PC	—		0%
SMBus	PC	—		0%
IDE	PC	—		0%
SCSI	PC	—		0%
PECI	PC	—		0%	Platform Environment Control Interface
SVID	PC	—		0%	Serial Voltage Identification
MFM	PC	—		90%	Floppy disk FM and MFM.	Work in progress (David Wiens).
HD Audio	Audio	—		0%
Nokia NRC17	IR	—		0%
Sony SIRC	IR	—		0%
Philips RC-6	IR	—		0%
Philips RC-MM	IR	—		0%
Philips RECS80	IR	—		0%
IrDA	Misc	—		0%
HD44780	Displays	—		0%	HD44780 character LCD protocol
7-segment display	Displays	—		0%
PCF8814	Displays	—	pcf8814	50%	Philips PCF8814 65 x 96 pixels matrix LCD driver	Work in progress (Uwe Hermann).
PCF8814 LCD	Displays	pcf8814	pcf8814_lcd	50%	Philips PCF8814 65 x 96 pixels matrix LCD driver	Work in progress (Uwe Hermann).
RDM	Industrial Lighting	—	rdm	0%
NMEA 0183	GPS	uart	nmea0183	0%
NMEA2000	Marine	can	nmea2000	0%	NMEA 2000 Wikipedia page
DCC	Trains	—	dcc	0%
MVB	Trains	—	mvb	0%	Multifunction Vehicle Bus
WTB	Trains	—	wtb	0%	Wire Train Bus
C-Bus	Home automation	—	cbus	0%
X10	Home automation	—	x10	0%
LonWorks	Home automation	—	lonworks	0%
S-Bus	Home automation	—	sbus	0%
M-Bus	Automation	—	mbus	0%
Modbus ASCII	Automation	uart	modbus	0%
Modbus TCP	Automation	ip	modbus	0%
HART protocol	Automation	—	hart	0%
INTERBUS	Automation	—	interbus	0%
DirectNET	Automation	uart	directnet	0%
KNX	Automation	various	knx	0%
BACnet	Automation		bacnet	0%
OpenTherm	Automation	—	opentherm	0%
EBUS	Automation	uart	ebus	0%
AUI	Networking	—	aui	0%	Attachment Unit Interface
MDI	Networking	—	mdi	0%	Medium Dependent Interface
MII	Networking	—	mii	0%	Media Independent Interface
GMII	Networking	—	gmii	0%	Gigabit Media Independent Interface
XGMII	Networking	—	xgmii	0%	10 Gigabit Media Independent Interface
ESP8266	Wireless	uart	esp8266	0%	WiFi Serial Transceiver
TMDS (HDMI / DVI Pixel Data)	Display	tmds	—	1%	https://github.com/mithro/tmds_encoding	Work in progress (mithro)
Easymatic	Home automation	uart	easymatic	10%		Work in progress (Platypus)
DDC/CI	PC	i2c	—	0%
Kenwood VH	Misc	—	—	50%	SYSTEM CONTROL protocol used by Kenwood's VH HiFi-system	In progress: https://github.com/kripton/libsigrokdecode/compare/kenwood_vh
IEC 61131-9	Industrial	—	—	0%	"Single-drop digital communication interface for small sensors and actuators (SDCI, marketed as IO-Link)" https://en.wikipedia.org/wiki/IEC_61131
NRZ encoding family	—	—	—	0%	Non-Return-to-Zero and its variants	whoever wants it
Manchester encoding	—	—	—	0%	Manchester code	whoever wants it
Sony LANC	—	—	—	0%	Sony LANC	whoever wants it, contact AlexDaniel for more info. You can already decode the raw data by using UART with 9600 baud and no parity, but it'd be better if pulseview displayed the meaning (as in what these commands do)
CAN-FD	Automotive	—	can	60%	Controller Area Network with Flexible Data Rate	Work in progress (Stephan Thiele).