€•ƒ-Œsphinx.addnodes”Œdocument”“”)”}”(Œ rawsource”Œ”Œchildren”]”(Œ translations”Œ LanguagesNode”“”)”}”(hhh]”(hŒ pending_xref”“”)”}”(hhh]”Œdocutils.nodes”ŒText”“”ŒChinese (Simplified)”…””}”Œparent”hsbaŒ attributes”}”(Œids”]”Œclasses”]”Œnames”]”Œdupnames”]”Œbackrefs”]”Œ refdomain”Œstd”Œreftype”Œdoc”Œ reftarget”Œ4/translations/zh_CN/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuŒtagname”hhh ubh)”}”(hhh]”hŒChinese (Traditional)”…””}”hh2sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/zh_TW/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒItalian”…””}”hhFsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/it_IT/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒJapanese”…””}”hhZsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/ja_JP/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒKorean”…””}”hhnsbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/ko_KR/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒPortuguese (Brazilian)”…””}”hh‚sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/pt_BR/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubh)”}”(hhh]”hŒSpanish”…””}”hh–sbah}”(h]”h ]”h"]”h$]”h&]”Œ refdomain”h)Œreftype”h+Œ reftarget”Œ4/translations/sp_SP/driver-api/soundwire/bra_cadence”Œmodname”NŒ classname”NŒ refexplicit”ˆuh1hhh ubeh}”(h]”h ]”h"]”h$]”h&]”Œcurrent_language”ŒEnglish”uh1h hhŒ _document”hŒsource”NŒline”NubhŒsection”“”)”}”(hhh]”(hŒtitle”“”)”}”(hŒCadence IP BRA support”h]”hŒCadence IP BRA support”…””}”(hh¼h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhh·h²hh³ŒN/var/lib/git/docbuild/linux/Documentation/driver-api/soundwire/bra_cadence.rst”h´Kubh¶)”}”(hhh]”(h»)”}”(hŒFormat requirements”h]”hŒFormat requirements”…””}”(hhÎh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhhËh²hh³hÊh´KubhŒ paragraph”“”)”}”(hŒtThe Cadence IP relies on PDI0 for TX and PDI1 for RX. The data needs to be formatted with the following conventions:”h]”hŒtThe Cadence IP relies on PDI0 for TX and PDI1 for RX. The data needs to be formatted with the following conventions:”…””}”(hhÞh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´KhhËh²hubhŒ block_quote”“”)”}”(hX(1) all Data is stored in bits 15..0 of the 32-bit PDI FIFOs. (2) the start of packet is BIT(31). (3) the end of packet is BIT(30). (4) A packet ID is stored in bits 19..16. This packet ID is determined by software and is typically a rolling counter. (5) Padding shall be inserted as needed so that the Header CRC, Header response, Footer CRC, Footer response are always in Byte0. Padding is inserted by software for writes, and on reads software shall discard the padding added by the hardware. ”h]”hŒenumerated_list”“”)”}”(hhh]”(hŒ list_item”“”)”}”(hŒ:all Data is stored in bits 15..0 of the 32-bit PDI FIFOs. ”h]”hÝ)”}”(hŒ9all Data is stored in bits 15..0 of the 32-bit PDI FIFOs.”h]”hŒ9all Data is stored in bits 15..0 of the 32-bit PDI FIFOs.”…””}”(hhýh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´K hhùubah}”(h]”h ]”h"]”h$]”h&]”uh1h÷hhôubhø)”}”(hŒ the start of packet is BIT(31). ”h]”hÝ)”}”(hŒthe start of packet is BIT(31).”h]”hŒthe start of packet is BIT(31).”…””}”(hjh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´K hjubah}”(h]”h ]”h"]”h$]”h&]”uh1h÷hhôubhø)”}”(hŒthe end of packet is BIT(30). ”h]”hÝ)”}”(hŒthe end of packet is BIT(30).”h]”hŒthe end of packet is BIT(30).”…””}”(hj-h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´Khj)ubah}”(h]”h ]”h"]”h$]”h&]”uh1h÷hhôubhø)”}”(hŒsA packet ID is stored in bits 19..16. This packet ID is determined by software and is typically a rolling counter. ”h]”hÝ)”}”(hŒrA packet ID is stored in bits 19..16. This packet ID is determined by software and is typically a rolling counter.”h]”hŒrA packet ID is stored in bits 19..16. This packet ID is determined by software and is typically a rolling counter.”…””}”(hjEh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´KhjAubah}”(h]”h ]”h"]”h$]”h&]”uh1h÷hhôubhø)”}”(hŒñPadding shall be inserted as needed so that the Header CRC, Header response, Footer CRC, Footer response are always in Byte0. Padding is inserted by software for writes, and on reads software shall discard the padding added by the hardware. ”h]”hÝ)”}”(hŒðPadding shall be inserted as needed so that the Header CRC, Header response, Footer CRC, Footer response are always in Byte0. Padding is inserted by software for writes, and on reads software shall discard the padding added by the hardware.”h]”hŒðPadding shall be inserted as needed so that the Header CRC, Header response, Footer CRC, Footer response are always in Byte0. Padding is inserted by software for writes, and on reads software shall discard the padding added by the hardware.”…””}”(hj]h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´KhjYubah}”(h]”h ]”h"]”h$]”h&]”uh1h÷hhôubeh}”(h]”h ]”h"]”h$]”h&]”Œenumtype”Œarabic”Œprefix”Œ(”Œsuffix”Œ)”uh1hòhhîubah}”(h]”h ]”h"]”h$]”h&]”uh1hìh³hÊh´K hhËh²hubeh}”(h]”Œformat-requirements”ah ]”h"]”Œformat requirements”ah$]”h&]”uh1hµhh·h²hh³hÊh´Kubh¶)”}”(hhh]”(h»)”}”(hŒExample format”h]”hŒExample format”…””}”(hjŽh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hºhj‹h²hh³hÊh´KubhÝ)”}”(hŒlThe following table represents the sequence provided to PDI0 for a write command followed by a read command.”h]”hŒlThe following table represents the sequence provided to PDI0 for a write command followed by a read command.”…””}”(hjœh²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´Khj‹h²hubhŒ literal_block”“”)”}”(hX/+---+---+--------+---------------+---------------+ + 1 | 0 | ID = 0 | WR HDR[1] | WR HDR[0] | + | | | WR HDR[3] | WR HDR[2] | + | | | WR HDR[5] | WR HDR[4] | + | | | pad | WR HDR CRC | + | | | WR Data[1] | WR Data[0] | + | | | WR Data[3] | WR Data[2] | + | | | WR Data[n-2] | WR Data[n-3] | + | | | pad | WR Data[n-1] | + 0 | 1 | | pad | WR Data CRC | +---+---+--------+---------------+---------------+ + 1 | 0 | ID = 1 | RD HDR[1] | RD HDR[0] | + | | | RD HDR[3] | RD HDR[2] | + | | | RD HDR[5] | RD HDR[4] | + 0 | 1 | | pad | RD HDR CRC | +---+---+--------+---------------+---------------+”h]”hX/+---+---+--------+---------------+---------------+ + 1 | 0 | ID = 0 | WR HDR[1] | WR HDR[0] | + | | | WR HDR[3] | WR HDR[2] | + | | | WR HDR[5] | WR HDR[4] | + | | | pad | WR HDR CRC | + | | | WR Data[1] | WR Data[0] | + | | | WR Data[3] | WR Data[2] | + | | | WR Data[n-2] | WR Data[n-3] | + | | | pad | WR Data[n-1] | + 0 | 1 | | pad | WR Data CRC | +---+---+--------+---------------+---------------+ + 1 | 0 | ID = 1 | RD HDR[1] | RD HDR[0] | + | | | RD HDR[3] | RD HDR[2] | + | | | RD HDR[5] | RD HDR[4] | + 0 | 1 | | pad | RD HDR CRC | +---+---+--------+---------------+---------------+”…””}”hj¬sbah}”(h]”h ]”h"]”h$]”h&]”Œ xml:space”Œpreserve”uh1jªh³hÊh´K hj‹h²hubhÝ)”}”(hŒkThe table below represents the data received on PDI1 for the same write command followed by a read command.”h]”hŒkThe table below represents the data received on PDI1 for the same write command followed by a read command.”…””}”(hj¼h²hh³Nh´Nubah}”(h]”h ]”h"]”h$]”h&]”uh1hÜh³hÊh´K2hj‹h²hubj«)”}”(hXc+---+---+--------+---------------+---------------+ + 1 | 0 | ID = 0 | pad | WR Hdr Rsp | + 0 | 1 | | pad | WR Ftr Rsp | +---+---+--------+---------------+---------------+ + 1 | 0 | ID = 0 | pad | Rd Hdr Rsp | + | | | RD Data[1] | RD Data[0] | + | | | RD Data[3] | RD Data[2] | + | | | RD HDR[n-2] | RD Data[n-3] | + | | | pad | RD Data[n-1] | + | | | pad | RD Data CRC | + 0 | 1 | | pad | RD Ftr Rsp | +---+---+--------+---------------+---------------+”h]”hXc+---+---+--------+---------------+---------------+ + 1 | 0 | ID = 0 | pad | WR Hdr Rsp | + 0 | 1 | | pad | WR Ftr Rsp | +---+---+--------+---------------+---------------+ + 1 | 0 | ID = 0 | pad | Rd Hdr Rsp | + | | | RD Data[1] | RD Data[0] | + | | | RD Data[3] | RD Data[2] | + | | | RD HDR[n-2] | RD Data[n-3] | + | | | pad | RD Data[n-1] | + | | | pad | RD Data CRC | + 0 | 1 | | pad | RD Ftr Rsp | +---+---+--------+---------------+---------------+”…””}”hjÊsbah}”(h]”h ]”h"]”h$]”h&]”jºj»uh1jªh³hÊh´K7hj‹h²hubeh}”(h]”Œexample-format”ah ]”h"]”Œexample format”ah$]”h&]”uh1hµhh·h²hh³hÊh´Kubeh}”(h]”Œcadence-ip-bra-support”ah ]”h"]”Œcadence ip bra support”ah$]”h&]”uh1hµhhh²hh³hÊh´Kubeh}”(h]”h ]”h"]”h$]”h&]”Œsource”hÊuh1hŒcurrent_source”NŒ current_line”NŒsettings”Œdocutils.frontend”ŒValues”“”)”}”(hºNŒ generator”NŒ datestamp”NŒ source_link”NŒ source_url”NŒ toc_backlinks”Œentry”Œfootnote_backlinks”KŒ sectnum_xform”KŒstrip_comments”NŒstrip_elements_with_classes”NŒ strip_classes”NŒ report_level”KŒ halt_level”KŒexit_status_level”KŒdebug”NŒwarning_stream”NŒ traceback”ˆŒinput_encoding”Œ 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