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: 130.

Protocol	Tags	Input IDs	Output IDs	Status	Full name	Description
AC '97	Audio, PC	logic	—	supported	Audio Codec '97	Audio and modem control for PC systems.
AD5626	IC, Analog/digital	spi	—	supported	Analog Devices AD5626	Analog Devices AD5626 12-bit nanoDAC.
AD79x0	IC, Analog/digital	spi	—	supported	Analog Devices AD79x0	Analog Devices AD7910/AD7920 12-bit ADC.
ADE77xx	Analog/digital, IC, Sensor	spi	—	supported	Analog Devices ADE77xx	Poly phase multifunction energy metering IC protocol.
ADF435x	Clock/timing, IC, Wireless/RF	spi	—	supported	Analog Devices ADF4350/1	Wideband synthesizer with integrated VCO.
ADNS-5020	IC, PC, Sensor	spi	—	supported	Avago ADNS-5020	Bidirectional optical mouse sensor protocol.
ADXL345	IC, Sensor	spi	—	supported	Analog Devices ADXL345	Analog Devices ADXL345 3-axis accelerometer.
AM230x	IC, Sensor	logic	—	supported	Aosong AM230x/DHTxx/RHTxx	Aosong AM230x/DHTxx/RHTxx humidity/temperature sensor.
Amulet ASCII	Display	uart	—	supported	Amulet LCD ASCII	Amulet Technologies LCD controller ASCII protocol.
ARM ETMv3	Debug/trace	uart	—	supported	ARM Embedded Trace Macroblock v3	ARM ETM v3 instruction trace protocol.
ARM ITM	Debug/trace	uart	—	supported	ARM Instrumentation Trace Macroblock	ARM Cortex-M / ARMv7m ITM trace protocol.
ARM TPIU	Debug/trace	uart	uart	supported	ARM Trace Port Interface Unit	Filter TPIU formatted trace data into separate streams.
ATSHA204A	Security/crypto, IC, Memory	i2c	—	supported	Microchip ATSHA204A	Microchip ATSHA204A family crypto authentication protocol.
AUD	Debug/trace	logic	—	supported	Advanced User Debugger	Renesas/Hitachi Advanced User Debugger (AUD) protocol.
AVR ISP	Debug/trace	spi	—	supported	AVR In-System Programming	Atmel AVR In-System Programming (ISP) protocol.
AVR PDI	Debug/trace	logic	—	supported	Atmel Program and Debug Interface	Atmel ATxmega Program and Debug Interface (PDI) protocol.
Caliper	Analog/digital, Sensor	logic	—	supported	Digital calipers	Protocol of cheap generic digital calipers.
CAN	Automotive	logic	—	supported	Controller Area Network	Field bus protocol for distributed realtime control.
CC1101	IC, Wireless/RF	spi	—	supported	Texas Instruments CC1101	Low-power sub-1GHz RF transceiver chip.
CEC	Display, PC	logic	—	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.
cJTAG	Debug/trace	logic	jtag	supported	Compact Joint Test Action Group (IEEE 1149.7)	Protocol for testing, debugging, and flashing ICs.
Counter	Util	logic	—	supported	Edge counter	Count the number of edges in a signal.
DALI	Embedded/industrial, Lighting	logic	—	supported	Digital Addressable Lighting Interface	Digital Addressable Lighting Interface (DALI) protocol.
DCF77	Clock/timing	logic	—	supported	DCF77 time protocol	European longwave time signal (77.5kHz carrier signal).
DMX512	Embedded/industrial, Lighting	uart	dmx512	supported	Digital MultipleX 512	Digital MultipleX 512 (DMX512) lighting protocol.
DS1307	Clock/timing, IC	i2c	—	supported	Dallas DS1307	Dallas DS1307 realtime clock module protocol.
DS2408	Embedded/industrial, IC	onewire_network	—	supported	Maxim DS2408	1-Wire 8-channel addressable switch.
DS243x	IC, Memory	onewire_network	—	supported	Maxim DS2432/3	Maxim DS243x series 1-Wire EEPROM protocol.
DS28EA00	IC, Sensor	onewire_network	—	supported	Maxim DS28EA00 1-Wire digital thermometer	1-Wire digital thermometer with Sequence Detect and PIO.
DSI	Embedded/industrial, Lighting	logic	—	supported	Digital Serial Interface	Digital Serial Interface (DSI) lighting protocol.
EDID	Display, Memory, PC	i2c	—	supported	Extended Display Identification Data	Data structure describing display device capabilities.
24xx EEPROM	IC, Memory	i2c	—	supported	24xx I²C EEPROM	24xx series I²C EEPROM protocol.
93xx EEPROM	IC, Memory	microwire	—	supported	93xx Microwire EEPROM	93xx series Microwire EEPROM protocol.
EM4100	IC, RFID	logic	—	supported	RFID EM4100	EM4100 100-150kHz RFID protocol.
EM4305	IC, RFID	logic	—	supported	RFID EM4205/EM4305	EM4205/EM4305 100-150kHz RFID protocol.
ENC28J60	Embedded/industrial, Networking	spi	—	supported	Microchip ENC28J60	Microchip ENC28J60 10Base-T Ethernet controller protocol.
FlexRay	Automotive	logic	—	supported	FlexRay	Automotive network communications protocol.
Gray code	Encoding	logic	—	supported	Gray code and rotary encoder	Accumulate rotary encoder increments, provide statistics.
Guess bitrate	Clock/timing, Util	logic	—	supported	Guess bitrate/baudrate	Guess the bitrate/baudrate of a UART (or other) protocol.
HDCP	PC, Security/crypto	i2c	hdcp	supported	HDCP over HDMI	HDCP protocol over HDMI.
I²C	Embedded/industrial	logic	i2c	supported	Inter-Integrated Circuit	Two-wire, multi-master, serial bus.
I²C demux	Util	i2c	—	supported	I²C demultiplexer	Demux I²C packets into per-slave-address streams.
I²C filter	Util	i2c	i2c	supported	I²C filter	Filter out addresses/directions in an I²C stream.
I²S	Audio, PC	logic	i2s	supported	Integrated Interchip Sound	Serial bus for connecting digital audio devices.
IEEE-488	PC, Retro computing	logic	ieee488	supported	IEEE-488 GPIB/HPIB/IEC	IEEE-488 General Purpose Interface Bus (GPIB/HPIB or IEC).
IR IRMP	IR	logic	—	supported	IR IRMP	IRMP infrared remote control multi protocol.
IR NEC	IR	logic	—	supported	IR NEC	NEC infrared remote control protocol.
IR RC-5	IR	logic	—	supported	IR RC-5	RC-5 infrared remote control protocol.
IR RC-6	IR	logic	—	supported	IR RC-6	RC-6 infrared remote control protocol.
IR SIRC	IR	logic	—	supported	Sony IR (SIRC)	Sony infrared remote control protocol (SIRC).
Jitter	Clock/timing, Util	logic	—	supported	Timing jitter calculation	Retrieves the timing jitter between two digital signals.
JTAG	Debug/trace	logic	jtag	supported	Joint Test Action Group (IEEE 1149.1)	Protocol for testing, debugging, and flashing ICs.
JTAG / EJTAG	Debug/trace	jtag	—	supported	Joint Test Action Group / EJTAG (MIPS)	MIPS EJTAG protocol.
JTAG / STM32	Debug/trace	jtag	—	supported	Joint Test Action Group / ST STM32	ST STM32-specific JTAG protocol.
LFAST	Embedded/industrial	logic	lfast	supported	NXP LFAST interface	Differential high-speed P2P interface
LIN	Automotive	uart	—	supported	Local Interconnect Network	Local Interconnect Network (LIN) protocol.
LM75	Sensor	i2c	—	supported	National LM75	National LM75 (and compatibles) temperature sensor.
LPC	PC	logic	—	supported	Low Pin Count	Protocol for low-bandwidth devices on PC mainboards.
LTC242x	IC, Analog/digital	spi	—	supported	Linear Technology LTC242x	Linear Technology LTC2421/LTC2422 1-/2-channel 20-bit ADC.
LTC26x7	IC, Analog/digital	i2c	—	supported	Linear Technology LTC26x7	Linear Technology LTC26x7 16-/14-/12-bit rail-to-rail DACs.
Maple bus	Retro computing	logic	—	supported	SEGA Maple bus	Maple bus peripheral protocol for SEGA Dreamcast.
MAX7219	Display	spi	—	supported	Maxim MAX7219/MAX7221	Maxim MAX72xx series 8-digit LED display driver.
MCS-48	Retro computing	logic	—	supported	Intel MCS-48	Intel MCS-48 external memory access protocol.
MDIO	Networking	logic	mdio	supported	Management Data Input/Output	MII management bus between MAC and PHY.
Microwire	Embedded/industrial	logic	microwire	supported	Microwire	3-wire, half-duplex, synchronous serial bus.
MIDI	Audio, PC	uart	—	supported	Musical Instrument Digital Interface	Musical Instrument Digital Interface (MIDI) protocol.
MIL-STD-1553	Embedded/industrial, Networking	logic	—	soon	MIL-STD-1553 avionic data bus.	MIL-STD-1553 avionic data bus protocol.
Miller	Encoding	logic	—	supported	Miller encoding	Miller encoding protocol.
MLX90614	IC, Sensor	i2c	—	supported	Melexis MLX90614	Melexis MLX90614 infrared thermometer protocol.
Modbus	Embedded/industrial	uart	modbus	supported	Modbus RTU over RS232/RS485	Modbus RTU protocol for industrial applications.
Morse	Encoding	logic	—	supported	Morse code	Demodulated morse code protocol.
MRF24J40	IC, Wireless/RF	spi	—	supported	Microchip MRF24J40	IEEE 802.15.4 2.4 GHz RF tranceiver chip.
MXC6225XU	IC, Sensor	i2c	—	supported	MEMSIC MXC6225XU	Digital Thermal Orientation Sensor (DTOS) protocol.
NES gamepad	Retro computing	spi	—	supported	Nintendo Entertainment System gamepad	NES gamepad button states.
nRF24L01(+)	IC, Wireless/RF	spi	—	supported	Nordic Semiconductor nRF24L01(+)	2.4GHz RF transceiver chip.
nRF905	IC, Wireless/RF	spi	—	supported	Nordic Semiconductor nRF905	433/868/933MHz transceiver chip.
Numbers and State	Encoding, Util	logic	numbers_and_state	supported	Interpret bit patters as numbers or state enums	Interpret bit patterns as different kinds of numbers (integer, float, enum).
Nunchuk	Sensor	i2c	—	supported	Nintendo Wii Nunchuk	Nintendo Wii Nunchuk controller protocol.
1-Wire link layer	Embedded/industrial	logic	onewire_link	supported	1-Wire serial communication bus (link layer)	Bidirectional, half-duplex, asynchronous serial bus.
1-Wire network layer	Embedded/industrial	onewire_link	onewire_network	supported	1-Wire serial communication bus (network layer)	Bidirectional, half-duplex, asynchronous serial bus.
OOK	Encoding	logic	ook	supported	On-off keying	On-off keying protocol.
Oregon	Sensor	ook	—	supported	Oregon Scientific	Oregon Scientific weather sensor protocol.
OOK visualisation	Encoding	ook	ook	supported	On-off keying visualisation	OOK visualisation in various formats.
PAN1321	Wireless/RF	uart	—	supported	Panasonic PAN1321	Bluetooth RF module with Serial Port Profile (SPP).
Parallel	Util	logic	parallel	supported	Parallel sync bus	Generic parallel synchronous bus.
PCA9571	Embedded/industrial, IC	i2c	—	supported	NXP PCA9571	NXP PCA9571 8-bit I²C output expander.
PJDL	Embedded/industrial	logic	pjon_link	supported	Padded Jittering Data Link	PJDL, a single wire serial link layer for PJON.
PJON	Embedded/industrial	pjon_link	—	supported	PJON	The PJON protocol.
PS/2	PC	logic	—	supported	PS/2	PS/2 keyboard/mouse interface.
PWM	Encoding	logic	—	supported	Pulse-width modulation	Analog level encoded in duty cycle percentage.
Qi	Embedded/industrial, Wireless/RF	logic	—	supported	Qi charger protocol	Protocol used by Qi receiver.
RC encode	IC, IR	logic	—	supported	Remote control encoder	PT2262/HX2262/SC5262 remote control encoder protocol.
RFM12	Wireless/RF	spi	—	supported	HopeRF RFM12	HopeRF RFM12 wireless transceiver control protocol.
RGB LED (SPI)	Display	spi	—	supported	RGB LED string decoder (SPI)	RGB LED string protocol (RGB values clocked over SPI).
RGB LED (WS281x)	Display, IC	logic	—	supported	RGB LED string decoder (WS281x)	RGB LED string protocol (WS281x).
RTC-8564	Clock/timing	i2c	—	supported	Epson RTC-8564 JE/NB	Realtime clock module protocol.
SAE J1850 VPW	Automotive	logic	—	supported	SAE J1850 VPW.	SAE J1850 Variable Pulse Width 1x and 4x.
SDA2506	IC, Memory	logic	—	supported	Siemens SDA 2506-5	Serial nonvolatile 1-Kbit EEPROM.
SD card (SD mode)	Memory	logic	—	supported	Secure Digital card (SD mode)	Secure Digital card (SD mode) low-level protocol.
SD card (SPI mode)	Memory	spi	—	supported	Secure Digital card (SPI mode)	Secure Digital card (SPI mode) low-level protocol.
SDQ	Embedded/industrial	logic	—	supported	Texas Instruments SDQ	Texas Instruments SDQ. The SDQ protocol is also used by Apple.
7-segment	Display	logic	—	supported	7-segment display	7-segment display protocol.
Signature	Debug/trace, Util, Encoding	logic	—	supported	Signature analysis	Annotate signature of logic patterns.
SIPI (Zipwire)	Embedded/industrial	lfast	none	supported	NXP SIPI interface	Serial Inter-Processor Interface (SIPI) aka Zipwire, aka HSSL
SLE 44xx	Memory	logic	—	supported	SLE44xx memory card	SLE 4418/28/32/42 memory card serial protocol
S/PDIF	Audio, PC	logic	—	supported	Sony/Philips Digital Interface Format	Serial bus for connecting digital audio devices.
SPI	Embedded/industrial	logic	spi	supported	Serial Peripheral Interface	Full-duplex, synchronous, serial bus.
SPI flash/EEPROM	IC, Memory	spi	—	supported	SPI flash/EEPROM chips	xx25 series SPI (NOR) flash/EEPROM chip protocol.
SSI32	Embedded/industrial	spi	—	supported	Synchronous Serial Interface (32bit)	Synchronous Serial Interface (32bit) protocol.
ST25R39xx	IC, Wireless/RF	spi	—	supported	STMicroelectronics ST25R39xx	High performance NFC universal device and EMVCo reader protocol.
ST7735	Display, IC	logic	—	supported	Sitronix ST7735	Sitronix ST7735 TFT controller protocol.
Stepper motor	Embedded/industrial	logic	—	supported	Stepper motor position / speed	Absolute position and movement speed from step/dir.
SWD	Debug/trace	logic	swd	supported	Serial Wire Debug	Two-wire protocol for debug access to ARM CPUs.
SWIM	Debug/trace	logic	—	supported	STM8 SWIM bus	STM8 Single Wire Interface Module (SWIM) protocol.
T55xx	IC, RFID	logic	—	supported	RFID T55xx	T55xx 100-150kHz RFID protocol.
TI TCA6408A	Embedded/industrial, IC	i2c	—	supported	Texas Instruments TCA6408A	Texas Instruments TCA6408A 8-bit I²C I/O expander.
TDM audio	Audio	logic	—	supported	Time division multiplex audio	TDM multi-channel audio protocol.
Timing	Clock/timing, Util	logic	—	supported	Timing calculation with frequency and averaging	Calculate time between edges.
TI TLC5620	IC, Analog/digital	logic	—	supported	Texas Instruments TLC5620	Texas Instruments TLC5620 8-bit quad DAC.
UART	Embedded/industrial	logic	uart	supported	Universal Asynchronous Receiver/Transmitter	Asynchronous, serial bus.
USB packet	PC	usb_signalling	usb_packet	supported	Universal Serial Bus (LS/FS) packet	USB (low-speed and full-speed) packet protocol.
USB PD	PC	logic	usb_pd	supported	USB Power Delivery	USB Power Delivery protocol.
USB request	PC	usb_packet	usb_request	supported	Universal Serial Bus (LS/FS) transaction/request	USB (low-speed/full-speed) transaction/request protocol.
USB signalling	PC	logic	usb_signalling	supported	Universal Serial Bus (LS/FS) signalling	USB (low-speed/full-speed) signalling protocol.
Wiegand	Embedded/industrial, RFID	logic	—	supported	Wiegand interface	Wiegand interface for electronic entry systems.
X2444M/P	IC, Memory	spi	—	supported	Xicor X2444M/P	Xicor X2444M/P nonvolatile static RAM protocol.
XFP	Networking	i2c	—	supported	10 Gigabit Small Form Factor Pluggable Module (XFP)	XFP I²C management interface structures/protocol
XY2-100	Embedded/industrial	logic	—	supported	XY2-100 and XY2-200 interface	XY2-100 protocol used for laser applications.
Z80	Retro computing	logic	—	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%
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%
Philips RC-MM	IR	—		0%
Philips RECS80	IR	—		0%
IrDA	Misc	—		0%
HD44780	Displays	—		0%	HD44780 character LCD protocol
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%
SBUS (Futaba)	Home automation	—	sbus	80%
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
Bi-Phase encoding family	—	—	—	0%	several variations of codes, including 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)
CCD (Chrysler's Collision Detection)	—	—	—	99%	CCD (Chrysler's Collision Detection) is internal bus used on Chrysler cars produced about 1990-2000.	It works, but decodes only subset of all possible CCD messages, mostly from Jeep ZJ '98. Need a little work to improve performance and better support of API 3. https://github.com/majekw/sigrok-ccd-pd
Mate-trac	—	(bi-phase)	—	0%	20th century protocol for remote control of projectors, often stored on audio tapes; described well by Adrian McCarthy	whoever wants it, possibly chrysn
PN532 NFC reader communication protocol	NFC	uart / spi / i2c	ISO14443	80%	PN532 is a 13.56 MHz NFC reader, supporting SPI, I2C or Serial UART	WIP for Serial UART: https://github.com/plaes/libsigrokdecode/tree/pn542-uart based on code from this repository
SAE J2716 SENT	Automotive	—		0%	SENT - Single Edge Nibble Transmission for Automotive Applications