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<div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">Texas Instruments serial audio communication peripheral</div> <p>A <b>Multichannel Audio Serial Port</b> (<b>McASP</b>) is a communication peripheral in digital signal processor (<a href="/wiki/Digital_signal_processor" title="Digital signal processor">DSP</a>) and microcontroller unit (<a href="/wiki/Microcontroller" title="Microcontroller">MCU</a>) components from <a href="/wiki/Texas_Instruments" title="Texas Instruments">Texas Instruments</a>.<sup id="cite_ref-CC3200_main_product_page_1-0" class="reference"><a href="#cite_note-CC3200_main_product_page-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup><br /> </p><p>An McASP functions as a general-purpose audio <a href="/wiki/Serial_port" title="Serial port">serial port</a> optimized for the needs of multichannel audio applications. Depending on the implementation, an McASP may be useful for time-division multiplexed (<a href="/wiki/Time-division_multiplexing" title="Time-division multiplexing">TDM</a>) streaming, inter-integrated circuit sound (<a href="/wiki/I2S" class="mw-redirect" title="I2S">I2S</a>) protocol, and intercomponent digital audio interface transmission (DIT). However, some implementations are limited to I2S.<sup id="cite_ref-CC3200_tech_ref_2-0" class="reference"><a href="#cite_note-CC3200_tech_ref-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>An McASP consists of transmit and receive sections that may operate synchronized, or completely independently with separate master clocks, bit clocks, and frame syncs, and using different transmit modes with different bit-stream formats. An McASP module also includes up to 16 serializers that can be individually enabled to either transmit or receive. In addition, all of the McASP pins can be configured as general-purpose input/output (<a href="/wiki/GPIO" class="mw-redirect" title="GPIO">GPIO</a>) pins. </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Features">Features</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=McASP&action=edit&section=1" title="Edit section: Features"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Features of an McASP include: </p> <ul><li>Two independent clock generator modules for transmit and receive <ul><li>Clocking flexibility allows an McASP to receive and transmit at different rates. For example, an McASP can receive data at 48 kHz but output up-sampled data at 96 kHz or 192 kHz.</li></ul></li> <li>Independent transmit and receive modules, each includes: <ul><li>Programmable clock and frame sync generator</li> <li>TDM streams from 2 to 32, and 384 time slots</li> <li>Support for time slot sizes of 8, 12, 16, 20, 24, 28, and 32 bits</li> <li>Data formatter for bit manipulation</li></ul></li> <li>Individually assignable serial data pins (up to 16 pins)</li> <li>Glueless connection to audio analog-to-digital converters (<a href="/wiki/Analog-to-digital_converter" title="Analog-to-digital converter">ADC</a>), digital-to-analog converters (<a href="/wiki/Digital-to-analog_converter" title="Digital-to-analog converter">DAC</a>), <a href="/wiki/Codec" title="Codec">Codec</a>, digital audio interface receiver (DIR), and <a href="/wiki/S/PDIF" title="S/PDIF">S/PDIF</a> transmit physical layer components.</li> <li>Wide variety of I2S and similar bit-stream format</li> <li>Integrated digital audio interface transmitter (DIT) supports: <ul><li><a href="/wiki/S/PDIF" title="S/PDIF">S/PDIF</a>, IEC60958-1, AES-3 formats</li> <li>Up to 16 transmit pins</li> <li>Enhanced channel status/user data <a href="/wiki/RAM" class="mw-redirect" title="RAM">RAM</a></li></ul></li> <li>384-slot TDM with external digital audio interface receiver (DIR) device <ul><li>For DIR reception, an external DIR receiver integrated circuit should be used with I2S output format and connected to an McASP receive section.</li></ul></li> <li>Extensive error checking and recovery <ul><li>Transmit underruns and receiver overruns due to the system not meeting real-time requirements</li> <li>Early or late frame sync in TDM mode</li> <li>Out-of-range high-frequency master clock for both transmit and receive</li> <li>External error signal coming into the AMUTEIN input</li> <li><a href="/wiki/Direct_memory_access" title="Direct memory access">DMA</a> error due to incorrect programming</li></ul></li></ul> <div class="mw-heading mw-heading2"><h2 id="Protocols">Protocols</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=McASP&action=edit&section=2" title="Edit section: Protocols"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>An McASP supports a wide variety of protocols. </p> <ul><li>Transmit section supports <ul><li>Wide variety of <a href="/wiki/I2S" class="mw-redirect" title="I2S">I2S</a> and similar bit-stream formats</li> <li>TDM streams from 2 to 32 time slots</li> <li><a href="/wiki/S/PDIF" title="S/PDIF">S/PDIF</a>, IEC60958-1, AES-3 formats</li></ul></li> <li>Receive section supports <ul><li>Wide variety of I2S and similar bit-stream formats</li> <li>TDM streams from 2 to 32 time slots</li> <li>TDM stream of 384 time slots specifically designed for easy interface to external digital interface receiver (DIR) device transmitting DIR frames to McASP using the I2S protocol (one time slot for each DIR subframe)</li></ul></li></ul> <p>The transmit and receive sections may each be individually programmed to support the following options on the basic serial protocol: </p> <ul><li>Programmable clock and frame sync polarity (rising or falling edge): ACLKR/X, AHCLKR/X and AFSR/X</li> <li>Slot length (number of bits per time slot): 8, 12, 16, 20, 24, 28, 32 bits supported</li> <li>Word length (bits per word): 8, 12, 16, 20, 24, 28, 32 bits; always less than or equal to the time slot length</li> <li>First-bit data delay: 0, 1, 2 bit clocks</li> <li>Left/right alignment of word inside slot</li> <li>Bit order: <a href="/wiki/Most_significant_bit" class="mw-redirect" title="Most significant bit">MSB</a> first or <a href="/wiki/Least_significant_bit" class="mw-redirect" title="Least significant bit">LSB</a> first</li> <li>Bit mask/pad/rotate function <ul><li>Automatically aligns data for DSP internally in either Q31 or integer formats</li> <li>Automatically masks nonsignificant bits (sets to 0, 1, or extends value of another bit)</li></ul></li></ul> <p>In DIT mode, additional features of the transmitter are: </p> <ul><li>Transmit-only mode- 384 time slots (subframe) per frame</li> <li>Bi-phase encoded 3.3 V output</li> <li>Support for consumer and professional applications</li> <li>Channel status <a href="/wiki/RAM" class="mw-redirect" title="RAM">RAM</a> (384 bits)</li> <li>User data <a href="/wiki/RAM" class="mw-redirect" title="RAM">RAM</a> (384 bits)</li> <li>Separate valid bit (V) for subframe A, B</li></ul> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=McASP&action=edit&section=3" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/S/PDIF" title="S/PDIF">S/PDIF</a> – Standardized digital audio interface</li> <li><a href="/wiki/Biphase_mark_code" class="mw-redirect" title="Biphase mark code">Biphase mark code</a> – Self-synchronizing line code<span style="display:none" class="category-annotation-with-redirected-description">Pages displaying short descriptions of redirect targets</span></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=McASP&action=edit&section=4" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <dl><dt>Notes</dt></dl> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-CC3200_main_product_page-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-CC3200_main_product_page_1-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.ti.com/product/CC3200?keyMatch=cc3200&tisearch=Search-EN-Everything">CC3200 SimpleLink Wi-Fi and Internet-of-Things Solution Wireless MCU Main Product Page</a></span> </li> <li id="cite_note-CC3200_tech_ref-2"><span class="mw-cite-backlink"><b><a href="#cite_ref-CC3200_tech_ref_2-0">^</a></b></span> <span class="reference-text"><a rel="nofollow" class="external text" href="http://www.ti.com/lit/ug/swru367b/swru367b.pdf">CC3200 Single Chip Wireless MCU Technical Reference Manual</a> <a rel="nofollow" class="external text" href="https://web.archive.org/web/20150226022529/http://www.ti.com/lit/ug/swru367b/swru367b.pdf">Archived</a> 2015-02-26 at the <a href="/wiki/Wayback_Machine" title="Wayback Machine">Wayback Machine</a></span> </li> </ol></div></div> <dl><dt>Sources</dt></dl> <ul><li><a rel="nofollow" class="external text" href="http://focus.ti.com/lit/ug/spru041j/spru041j.pdf">TMS320C6000 DSP Multichannel Audio Serial Port (McASP) Reference Guide</a></li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist 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.hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Technical_and_de_facto_standards_for_wired_computer_buses477" style="padding:3px"><table class="nowraplinks mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374" /><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Computer_bus" title="Template:Computer bus"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Computer_bus" title="Template talk:Computer bus"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Computer_bus" title="Special:EditPage/Template:Computer bus"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Technical_and_de_facto_standards_for_wired_computer_buses477" style="font-size:114%;margin:0 4em"><a href="/wiki/Technical_standard" title="Technical standard">Technical</a> and <a href="/wiki/De_facto_standard" title="De facto standard"><i>de facto</i> standards</a> for <a href="/wiki/Wired_communication" title="Wired communication">wired</a> <a href="/wiki/Bus_(computing)" title="Bus (computing)">computer buses</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">General</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/System_bus" title="System bus">System bus</a></li> <li><a href="/wiki/Front-side_bus" title="Front-side bus">Front-side bus</a></li> <li><a href="/wiki/Back-side_bus" title="Back-side bus">Back-side bus</a></li> <li><a href="/wiki/Daisy_chain_(electrical_engineering)" title="Daisy chain (electrical engineering)">Daisy chain</a></li> <li><a href="/wiki/Control_bus" title="Control bus">Control bus</a></li> <li><a href="/wiki/Address_bus" class="mw-redirect" title="Address bus">Address bus</a></li> <li><a href="/wiki/Bus_contention" title="Bus contention">Bus contention</a></li> <li><a href="/wiki/Bus_mastering" title="Bus mastering">Bus mastering</a></li> <li><a href="/wiki/Network_on_a_chip" title="Network on a chip">Network on a chip</a></li> <li><a href="/wiki/Plug_and_play" title="Plug and play">Plug and play</a></li> <li><a href="/wiki/List_of_interface_bit_rates#Computer_buses" title="List of interface bit rates">List of bus bandwidths</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Standards</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SS-50_bus" title="SS-50 bus">SS-50 bus</a></li> <li><a href="/wiki/S-100_bus" title="S-100 bus">S-100 bus</a></li> <li><a href="/wiki/Multibus" title="Multibus">Multibus</a></li> <li><a href="/wiki/Unibus" title="Unibus">Unibus</a></li> <li><a href="/wiki/VAXBI_bus" title="VAXBI bus">VAXBI</a></li> <li><a href="/wiki/MBus_(SPARC)" title="MBus (SPARC)">MBus</a></li> <li><a href="/wiki/STD_Bus" title="STD Bus">STD Bus</a></li> <li><a href="/wiki/System_Management_Bus" title="System Management Bus">SMBus</a></li> <li><a href="/wiki/Q-Bus" title="Q-Bus">Q-Bus</a></li> <li><a href="/wiki/Europe_Card_Bus" title="Europe Card Bus">Europe Card Bus</a></li> <li><a href="/wiki/Industry_Standard_Architecture" title="Industry Standard Architecture">ISA</a></li> <li><a href="/wiki/STEbus" title="STEbus">STEbus</a></li> <li><a href="/wiki/Amiga_Zorro_II" title="Amiga Zorro II">Zorro II</a></li> <li><a href="/wiki/Amiga_Zorro_III" title="Amiga Zorro III">Zorro III</a></li> <li><a href="/wiki/Computer_Automated_Measurement_and_Control" title="Computer Automated Measurement and Control">CAMAC</a></li> <li><a href="/wiki/FASTBUS" title="FASTBUS">FASTBUS</a></li> <li><a href="/wiki/Low_Pin_Count" title="Low Pin Count">LPC</a></li> <li><a href="/wiki/HP_Precision_Bus" title="HP Precision Bus">HP Precision Bus</a></li> <li><a href="/wiki/Extended_Industry_Standard_Architecture" title="Extended Industry Standard Architecture">EISA</a></li> <li><a href="/wiki/VMEbus" title="VMEbus">VME</a></li> <li><a href="/wiki/VME_eXtensions_for_Instrumentation" title="VME eXtensions for Instrumentation">VXI</a></li> <li><a href="/wiki/VXS" title="VXS">VXS</a></li> <li><a href="/wiki/VPX" title="VPX">VPX</a></li> <li><a href="/wiki/NuBus" title="NuBus">NuBus</a></li> <li><a href="/wiki/TURBOchannel" title="TURBOchannel">TURBOchannel</a></li> <li><a href="/wiki/Micro_Channel_architecture" title="Micro Channel architecture">MCA</a></li> <li><a href="/wiki/SBus" title="SBus">SBus</a></li> <li><a href="/wiki/VESA_Local_Bus" title="VESA Local Bus">VLB</a></li> <li><a href="/wiki/GSC_bus" title="GSC bus">HP GSC bus</a></li> <li><a href="/wiki/InfiniBand" title="InfiniBand">InfiniBand</a></li> <li><a href="/wiki/Ethernet" title="Ethernet">Ethernet</a></li> <li><a href="/wiki/Ultra_Port_Architecture" title="Ultra Port Architecture">UPA</a></li> <li><a href="/wiki/Peripheral_Component_Interconnect" title="Peripheral Component Interconnect">PCI</a></li> <li><a href="/wiki/PCI-X" title="PCI-X">PCI Extended (PCI-X)</a></li> <li><a href="/wiki/PCI_eXtensions_for_Instrumentation" title="PCI eXtensions for Instrumentation">PXI</a></li> <li><a href="/wiki/PCI_Express" title="PCI Express">PCI Express (PCIe)</a></li> <li><a href="/wiki/Accelerated_Graphics_Port" title="Accelerated Graphics Port">AGP</a></li> <li><a href="/wiki/Compute_Express_Link" title="Compute Express Link">Compute Express Link (CXL)</a></li> <li><a href="/wiki/Direct_Media_Interface" title="Direct Media Interface">Direct Media Interface (DMI)</a></li> <li><a href="/wiki/RapidIO" title="RapidIO">RapidIO</a></li> <li><a href="/wiki/Intel_QuickPath_Interconnect" title="Intel QuickPath Interconnect">Intel QuickPath Interconnect</a></li> <li><a href="/wiki/NVLink" title="NVLink">NVLink</a></li> <li><a href="/wiki/HyperTransport" title="HyperTransport">HyperTransport</a> <ul><li><a href="/wiki/Infinity_Fabric" class="mw-redirect" title="Infinity Fabric">Infinity Fabric</a></li></ul></li> <li><a href="/wiki/Intel_Ultra_Path_Interconnect" title="Intel Ultra Path Interconnect">Intel Ultra Path Interconnect</a></li> <li><a href="/wiki/Coherent_Accelerator_Processor_Interface" title="Coherent Accelerator Processor Interface">Coherent Accelerator Processor Interface (CAPI)</a></li> <li><a href="/wiki/SpaceWire" title="SpaceWire">SpaceWire</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Storage</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ST-506/ST-412" title="ST-506/ST-412">ST-506</a></li> <li><a href="/wiki/Enhanced_Small_Disk_Interface" title="Enhanced Small Disk Interface">ESDI</a></li> <li><a href="/wiki/Standard_Disk_Interconnect" title="Standard Disk Interconnect">SDI</a></li> <li><a href="/wiki/Intelligent_Peripheral_Interface" title="Intelligent Peripheral Interface">IPI</a></li> <li><a href="/wiki/Storage_Module_Device" title="Storage Module Device">SMD</a></li> <li><a href="/wiki/Parallel_ATA" title="Parallel ATA">Parallel ATA (PATA)</a></li> <li><a href="/wiki/Bus_and_Tag" title="Bus and Tag">Bus and Tag</a></li> <li><a href="/wiki/Digital_Storage_Systems_Interconnect" title="Digital Storage Systems Interconnect">DSSI</a></li> <li><a href="/wiki/HIPPI" title="HIPPI">HIPPI</a></li> <li><a href="/wiki/SATA" title="SATA">Serial ATA (SATA)</a></li> <li><a href="/wiki/SCSI" title="SCSI">SCSI</a> <ul><li><a href="/wiki/Parallel_SCSI" title="Parallel SCSI">Parallel</a></li> <li><a href="/wiki/Serial_Attached_SCSI" title="Serial Attached SCSI">SAS</a></li></ul></li> <li><a href="/wiki/ESCON" title="ESCON">ESCON</a></li> <li><a href="/wiki/Fibre_Channel" title="Fibre Channel">Fibre Channel</a></li> <li><a href="/wiki/Serial_Storage_Architecture" title="Serial Storage Architecture">SSA</a></li> <li><a href="/wiki/SATA_Express" title="SATA Express">SATAe</a></li> <li>PCI Express (via <a href="/wiki/Advanced_Host_Controller_Interface" title="Advanced Host Controller Interface">AHCI</a> or <a href="/wiki/NVM_Express" title="NVM Express">NVMe</a> logical device interface)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Peripheral</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Apple_Desktop_Bus" title="Apple Desktop Bus">Apple Desktop Bus</a></li> <li><a href="/wiki/Atari_SIO" title="Atari SIO">Atari SIO</a></li> <li><a href="/wiki/Digital_Control_Bus" title="Digital Control Bus">DCB</a></li> <li><a href="/wiki/Commodore_bus" title="Commodore bus">Commodore bus</a></li> <li><a href="/wiki/HP-IL" title="HP-IL">HP-IL</a></li> <li><a href="/wiki/HIL_bus" title="HIL bus">HIL</a></li> <li><a href="/wiki/MIDI" title="MIDI">MIDI</a></li> <li><a href="/wiki/RS-232" title="RS-232">RS-232</a></li> <li><a href="/wiki/RS-422" title="RS-422">RS-422</a></li> <li><a href="/wiki/RS-423" title="RS-423">RS-423</a></li> <li><a href="/wiki/RS-485" title="RS-485">RS-485</a></li> <li><a href="/wiki/Lightning_(connector)" title="Lightning (connector)">Lightning</a></li> <li><a href="/wiki/DMX512#DMX512-A" title="DMX512">DMX512-A</a></li> <li><a href="/wiki/IEEE-488" class="mw-redirect" title="IEEE-488">IEEE-488 (GPIB)</a></li> <li><a href="/wiki/IEEE_1284" title="IEEE 1284">IEEE-1284 (parallel port)</a></li> <li><a href="/wiki/IEEE_1394" title="IEEE 1394">IEEE-1394 (FireWire)</a></li> <li><a href="/wiki/UNI/O" title="UNI/O">UNI/O</a></li> <li><a href="/wiki/1-Wire" title="1-Wire">1-Wire</a></li> <li><a href="/wiki/I%C2%B2C" title="I²C">I²C</a> (<a href="/wiki/ACCESS.bus" title="ACCESS.bus">ACCESS.bus</a>, <a href="/wiki/Power_Management_Bus" title="Power Management Bus">PMBus</a>, <a href="/wiki/System_Management_Bus" title="System Management Bus">SMBus</a>)</li> <li><a href="/wiki/I3C_(bus)" title="I3C (bus)">I3C</a></li> <li><a href="/wiki/Serial_Peripheral_Interface" title="Serial Peripheral Interface">SPI</a></li> <li><a href="/wiki/IEC_61030" title="IEC 61030">D²B</a></li> <li><a href="/wiki/Parallel_SCSI" title="Parallel SCSI">Parallel SCSI</a></li> <li><a href="/wiki/Profibus" title="Profibus">Profibus</a></li> <li><a href="/wiki/USB" title="USB">USB</a></li> <li><a href="/wiki/Camera_Link" title="Camera Link">Camera Link</a></li> <li><a href="/wiki/PCI_Express#PCI_Express_External_Cabling" title="PCI Express">External PCIe</a></li> <li><a href="/wiki/Thunderbolt_(interface)" title="Thunderbolt (interface)">Thunderbolt</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Audio</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/ADAT_Lightpipe" title="ADAT Lightpipe">ADAT Lightpipe</a></li> <li><a href="/wiki/AES3" title="AES3">AES3</a></li> <li><a href="/wiki/Intel_High_Definition_Audio" title="Intel High Definition Audio">Intel HD Audio</a></li> <li><a href="/wiki/I%C2%B2S" title="I²S">I²S</a></li> <li><a href="/wiki/MADI" title="MADI">MADI</a></li> <li><a class="mw-selflink selflink">McASP</a></li> <li><a href="/wiki/S/PDIF" title="S/PDIF">S/PDIF</a></li> <li><a href="/wiki/TOSLINK" title="TOSLINK">TOSLINK</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Portable</th><td class="navbox-list-with-group navbox-list navbox-even hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/PC_Card" title="PC Card">PC Card</a></li> <li><a href="/wiki/ExpressCard" title="ExpressCard">ExpressCard</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Embedded</th><td class="navbox-list-with-group navbox-list navbox-odd hlist" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Multidrop_bus" title="Multidrop bus">Multidrop bus</a></li> <li><a href="/wiki/CoreConnect" title="CoreConnect">CoreConnect</a></li> <li><a href="/wiki/Advanced_Microcontroller_Bus_Architecture" title="Advanced Microcontroller Bus Architecture">AMBA</a> (<a href="/wiki/Advanced_eXtensible_Interface" title="Advanced eXtensible Interface">AXI</a>)</li> <li><a href="/wiki/Wishbone_(computer_bus)" title="Wishbone (computer bus)">Wishbone</a></li> <li><a href="/wiki/SLIMbus" title="SLIMbus">SLIMbus</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div><small>Interfaces are listed by their speed in the (roughly) ascending order, so the interface at the end of each section should be the fastest.</small><br /><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" 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