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多分分かるUSB Type-C
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astolfo
July 31, 2020
Technology
710
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多分分かるUSB Type-C
ARCANA Meetup #62
astolfo
July 31, 2020
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Transcript
ଟΘ͔Δ64#5ZQF$ தඌ ͔ͨ·͞ NBUUFOO "3$"/".FFUVQ
΅͘ • 1)1εΩʔ • MBNCEBͱઓͬͯΔ • 4MBDLʹେྔͷֆจࣈΛՃͨ͠൜ਓ ◦ ݸʢશମͷׂʣ •
Ϟνϕ͕കӍ໌͚͠ͳ͍
ͯ͞ຊ
͜ͱͷൃ
ϫΠɺ݄̍ೖࣾ
͞ΕͨΞμϓλͰ.#1ͱϞχλͱଓ
ʮ,ग़ྗ͞Εͳ͍ʯ
ʢ͜ͷݪҼ64#5ZQF$Ͱແ͍Ͱ͕͢ʣ 64#UZQF$໘͍͘͞
ࠓճͷ͓ͳ͠ • 64#5ZQF$ͷܗঢ়ʹ͍ͭͯ͠·͢ • ௨৴ͱ͔ͷ͠·ͤΜ ◦ ͪΒͬͱ͠·͢ • ॆిͷ͠·ͤΜ ◦
ͪΒͬͱ͠·͢
64#5ZQF$ͱ
64#5ZQF$ͱ • දཪ͕ͳ͍ • ࢠ͕ؔͳ͍ • ϐϯ͕૿͑ͨ
ಛ̍ɿදཪ͕ͳ͍ Ϧόʔγϒϧͳߏʹͳ͍ͬͯΔͨΊɺ͖Λؾʹͤͣࠩ͠ࠐΊΔ
ಛ̎ɿࢠ͕ؔͳ͍ • ࠓ·Ͱ͕"ίωΫλɺࢠ͕#ίωΫλͩͬͨ • ͔ͩΒύιίϯ"ίωΫλͰϓϦϯλʔͱ͔͕#ίωΫλͩͬͨ ˡ"ίωΫλ 1$ʹͭͳ͙΄͏ ˡ#ίωΫλ ϓϦϯλʔͱ͔ʹͭͳ͙ํʣ
ಛ̎ɿࢠ͕ؔͳ͍ • ࠓ·Ͱ͕"ίωΫλɺࢠ͕#ίωΫλͩͬͨ • ͔ͩΒύιίϯ"ίωΫλͰϓϦϯλʔͱ͔͕#ίωΫλͩͬͨ • ͔ͦ͜͠͠ʹొͨ͠64#05( ◦ ຊདྷʮࢠʯʹͳΔͣͷεϚϗ͕ʮʯʹͳͬͯଞػثͱͭͳ ͕Δ
◦ ΊͪΌͪ͘Όʹͳͬͯ͏ͨ • ࠓޙࢧো͕ग़ͳ͍Α͏ʹࢠಉ͡ίωΫλʹʂ
ಛ̏ɿϐϯ͕ଟ͍ • ̔ϐϯ͔Β̎̐ϐϯʹͳͬͨʂ • ͏͜͜·Ͱ͘Δͱ64#ͱશؔ͘ͳ͍ଞͷ৴߸ྲྀͤͪΌ͏ ◦ 64#ͷίωΫλͱϐϯ͚ͩΛͬͯଞͷ৴߸Λྲྀͨ͢Ίͷن֨ 64#5ZQF$"MUFSOBUF.PEFͷੜ ◦ σεϩʔυͷੜ
64#5ZQF$ʹྲྀͤΔن֨ • 64# • 64#(FO 64#ͷ͜ͱʣ • 64#(FO 64#ͷ͜ͱ •
64#(FOY 64#ͷ͜ͱ έʔϒϧͱػث͕ରԠ͍ͯ͠Εɺ͜ΕΒ͕͑Δ
64#5ZQF$ʹྲྀͤΔن֨ • 64# • 64#(FO 64#ͷ͜ͱʣ • 64#(FO 64#ͷ͜ͱ •
64#(FOY 64#ͷ͜ͱ έʔϒϧͱػث͕ରԠ͍ͯ͠Εɺ͜ΕΒ͕͑Δ ˠέʔϒϧͱػث͕ରԠͯ͠ͳ͍ͱ͜ΕΒ͑ͳ͍ʂ
ࢀߟྫɿ/VBOT/FP • 8JOEPXT.PCJMFࡌεϚϗ • σΟεϓϨΠͱଓ͢Δͱ1$ײ֮Ͱ͑Δ • 64#5ZQF$ࡌ
ࢀߟྫɿ/VBOT/FP • 8JOEPXT.PCJMFࡌεϚϗ • σΟεϓϨΠͱଓ͢Δͱ1$ײ֮Ͱ͑Δ • 64#5ZQF$ࡌ ◦ ͨͩ͠64#ͷΈ ◦
ը໘ग़ͤͳ͍ ◦ 64#͘ͳ͍
ΊΜͲ͍͘͞Ͱ͢Ͷʁ
64#5ZQF$ͷͳ͔·ͨͪ
εϥΠυΛલʹ͠·͢
ಛ̏ɿϐϯ͕ଟ͍ • ̔ϐϯ͔Β̎̐ϐϯʹͳͬͨʂ • ͏͜͜·Ͱ͘Δͱ64#ͱશؔ͘ͳ͍ଞͷ৴߸ྲྀͤͪΌ͏ ◦ 64#ͷίωΫλͱϐϯ͚ͩΛͬͯଞͷ৴߸Λྲྀͨ͢Ίͷن֨ 64#5ZQF$"MUFSOBUF.PEFͷੜ ◦ σεϩʔυͷੜ
ಛ̏ɿϐϯ͕ଟ͍ • ̔ϐϯ͔Β̎̐ϐϯʹͳͬͨʂ • ͏͜͜·Ͱ͘Δͱ64#ͱશؔ͘ͳ͍ଞͷ৴߸ྲྀͤͪΌ͏ ◦ 64#ͷίωΫλͱϐϯ͚ͩΛͬͯଞͷ৴߸Λྲྀͨ͢Ίͷن֨ 64#5ZQF$"MUFSOBUF.PEFͷੜ ◦ σεϩʔυͷੜ
ͳʹ͕ྲྀͤΔͷʁ • )%.* • 64#1% • %JTQMBZ1PSU • 5IVOEFSCPMU 64#ͱશવؔͳ͍৴߸͕ྲྀͤΔɺͦΕ͕64#UZQF$
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64#1% 64#1PXFS%FMJWFSZ • 1$ͷΑ͏ͳେ͖ͳిྗ͕ඞཁͳػثڅి͢ΔͨΊͷن֨ • ػث͕ଓ͢Δͱɺిݯଆ͕ग़ྗͰ͖ΔిѹΛఏࣔͯ͠ɺػثଆ͕ ͦͷத͔Β͍͍ͨిѹΛϦΫΤετͯ͠څి͢Δʢ1%0ʣ • 64#"$ͷΑ͏ͳ௨৴Ͱ͖ͳ͍ঢ়ଶͰԿ͠ͳ͍ʢ7ͷ··ʣ •
Έ͕ղ
%JTQMBZ1PSU • %7*Λ໓΅ͨ͢Ίʹੜͨ͠ن֨ • ύέοτͰૹ͢ΔͷͰ,Ͱ,Ͱ͑Δ • ༷͕ࠜຊతʹҧ͏ͷͰ)%.*ͱͷޓੑͳ͍ ◦ %JTQMBZ1PSUͷϐϯΛͬͯ)%.*ͳͲͷ৴߸Λग़༷͋͢Δ %VBMNPEF%JTQMBZ1PSU
◦ %JTQMBZ1PSUͱ)%.*มέʔϒϧ͕͋Δͷ͜Εͷ͓͔͛
5IVOEFSCPMU • *OUFMͱ"QQMF͕ࡦఆ • 64# 64#1% %JTQMBZ1PSUʹՃ͑ͯ1$*&YQSFTTY͕ྲྀͤΔ • ͳΜͰಈ͔ͤͯ͠·͏ ◦
άϥϑΟοΫϘʔυಈ͔ͤΔ ◦ (ͷ/*$ͱ͔ ◦ ͔ͩΒ.BD#PPL1SP"JSʹԿΛͭͳ͍Ͱ͑Δ ◦ .BDʹࡌ͞Ε͍ͯΔ͜ͱ͕ଟ͍͕.BDݶఆͰͳ͍ • *OUFMࡦఆͳͷͰ࠷ۙͷ3Z[FOࡌ1$ͱ͔ʹແ͍͜ͱ͕ଟ͍
ิɿࡢࠓͷ64#5ZQF$UP)%.*Ξμϓλ • 64#5ZQF$͔Βٸܹʹ૿͑ͨ)%.*ͷมΞμϓλ • σόΠεଆͷ64#UZQF$͔Β)%.*ͳͲͷ৴߸ΛऔΓग़ͯ͠ίωΫ λʹ͍ͯ͠Δ͚ͩ • มΞμϓλࣗʹάϥϑΟοΫػೳͳ͍ ◦ ͭ·Γ5ZQF$͕͋Δ͔Βͱݴͬͯը໘͕ඞͣग़ྗͰ͖ΔΘ͚Ͱ
ͳ͍
͍͢͝Ͱ͢Ͷ
؆୯ʹ·ͱΊΔͱ • ػثͷεϖοΫදίωΫλʹ͍͍ͭͯΔϚʔΫΛͪΌΜͱݟͯ ◦ Ͳͷػث64#5ZQF$͕͋ΕॆిͰ͖ΔΘ͚͡Όͳ͍ ◦ Ͳͷػث64#5ZQF$͕͋Εը໘ग़ྗͰ͖ΔΘ͚͡Όͳ͍ ◦ 64#5ZQF$͔ͩΒ͍ͬͯΘ͚͡Όͳ͍ ◦
5IVOEFSCPMUͷϚʔΫ͕͋Εը໘ग़ྗॆిͳΜͰͰ͖ Δͱࢥͬͯ0,
Θ͔Γ·ͨ͠Ͷʁ
εϥΠυΛ͠·͢
64#5ZQF$ʹྲྀͤΔن֨ • 64# • 64#(FO 64#ͷ͜ͱʣ • 64#(FO • 64#
έʔϒϧͱػث͕ରԠ͍ͯ͠Εɺ͜ΕΒ͕͑Δ ˠέʔϒϧͱػث͕ରԠͯ͠ͳ͍ͱ͜ΕΒ͑ͳ͍ʂ
64#5ZQF$ʹྲྀͤΔن֨ • 64# • 64#(FO 64#ͷ͜ͱʣ • 64#(FO • 64#
έʔϒϧͱػث͕ରԠ͍ͯ͠Εɺ͜ΕΒ͕͑Δ ˠέʔϒϧͱػث͕ରԠͯ͠ͳ͍ͱ͜ΕΒ͑ͳ͍ʂ
έʔϒϧ έʔϒϧʹछྨ͕͋Γ·͢ छྨଟ͗ͯ͢ਖ਼ௐΕͯͳ͍Ͱ͢ • 64#ʢ߅ͳ͠ʣ • 64#ʢ߅͋Γʣ • 64#ʢ߅ͳ͠ʣ •
64#ʢ߅͋Γʣ • 64#ʢF.BSLFS͋Γʣ • 5IVOEFSCPMUύογϒέʔϒϧ
έʔϒϧͷݟ͚ํ 64# 64#(FO 64# 64#(FO 64# 5IVOEFSCPMU
έʔϒϧͷݟ͚ํ ϩΰ͕͋ΕผͰ͖Δ͚Ͳɺϩΰ͕ͳ͍߹͔Βͳ͍
2͡Ό͋ԶΒͲͷ64#5ZQF$έʔϒϧΛ͍͍͑ͷʁ "ଐ͔७ਖ਼ΦϓγϣϯΛ͍ͬͯͩ͘͞ ʢϋζϨҾ͖ͨ͘ͳ͍ͳΒɺശʹ64#ϩΰ͕͍ͭͯΔͷΛબͿͱ 0,ʣ
ࠓޙͷ64# • 64#͕ࡦఆ ◦ 5IVOEFSCPMUΛϕʔεʹͯ͠ߴͰ௨৴Ͱ͖ΔΑ͏ʹ
ࠓޙͷ64# • 64#͕ࡦఆ ◦ 5IVOEFSCPMUΛϕʔεʹͯ͠ߴͰ௨৴Ͱ͖ΔΑ͏ʹ • 5IVOEFSCPMUࡦఆ ◦ 64#ͱޓੑ͋Γ ◦
ܗঢ়ͪΖΜ64#5ZQF$
·ͱΊ • 64#5ZQF$ͷܗঢ়ɺطଘͷ64#ίωΫλͰൃੜͨ͠Λղܾ ͍ͯ͠Δ • ࠓޙਐԽͯ͠ܗঢ়Λҡ࣋Ͱ͖ΔಛघͳίωΫλ • ίωΫλέʔϒϧ͕ಉ͡ͰɺͰ͖Δ͜ͱ͕ҧ͏ • ແཧͯ͠౷Ұ͠Α͏ͱͨ݁͠ՌٯʹࠞཚΛট͍ͨ
• 64#ͷొͰɺຊʹ౷ҰͰ͖Δͷ͔ʁ
ࢿྉͱ͔ • 64#5ZQF$$POOFDUPSTBOE$BCMF"TTFNCMJFT$PNQMJBODF%PDVNFOU3FWJTJPOc64#*' IUUQTXXXVTCPSHEPDVNFOUMJCSBSZVTCUZQFDDPOOFDUPSTBOEDBCMFBTTFNCMJFTDPNQMJBODF EPDVNFOUSFWJTJPO • 64#1PXFS%FMJWFSZc64#*'IUUQTXXXVTCPSHEPDVNFOUMJCSBSZVTCQPXFSEFMJWFSZ • 64#5ZQF$ 64#$
ͱ r ͳΔ͘γϯϓϧʹղઆ IUUQTIBOQFOCMPHDPN • 7&4"3FMFBTFT6QEBUFE%JTQMBZ1PSUä"MU.PEF4QFDUP#SJOH%JTQMBZ1PSU1FSGPSNBODFUP64#ä BOE/FX64#5ZQF$%FWJDFT 7&4" *OUFSGBDF4UBOEBSETGPS5IF%JTQMBZ*OEVTUSZ IUUQTWFTBPSHGFBUVSFEBSUJDMFTWFTBSFMFBTFTVQEBUFEEJTQMBZQPSUBMUNPEFTQFDUPCSJOHEJTQMBZQPSU QFSGPSNBODFUPVTCBOEOFXVTCUZQFDEFWJDFT • 7&4"*OUSPEVDFT6QEBUFE%VBM.PEF4UBOEBSEGPS)JHIFS3FTPMVUJPO*OUFSPQFSBCJMJUZXJUI)%.*%JTQMBZT %JTQMBZ1PSUIUUQTXXXEJTQMBZQPSUPSHQSWFTBJOUSPEVDFTVQEBUFEEVBMNPEFTUBOEBSEGPSIJHIFS SFTPMVUJPOJOUFSPQFSBCJMJUZXJUIIENJEJTQMBZT • )%.*4QFDJGJDBUJPOTBOE1SPHSBNT )%.*IUUQTXXXIENJPSHTQFDJOEFY • ৽͍͠64#ͷελϯμʔυɿ64#ͷઆ໌ IUUQTKQNTJDPNCMPHOFXVTCTUBOEBSEVTCHFOHFO FYQMBJOFE • 5IVOEFSCPMUͷհɿ୭͕͑ΔϢχόʔαϧͳέʔϒϧଓ cΠϯςϧ χϡʔεϧʔϜ IUUQTOFXTSPPNJOUFMDPKQOFXTJOUSPEVDJOHUIVOEFSCPMUVOJWFSTBMDBCMFDPOOFDUJWJUZ
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