ADI ADIN2111 àjọlòyipadayoo jẹ akọkọ ohun ifihan ti awọn wọnyi akoonu. Nipasẹ nkan yii, olootu ni ireti pe gbogbo eniyan le ni imọ diẹ ati oye ti ipo ti o ni ibatan ati alaye. Awọn alaye jẹ bi atẹle.
ADIN2111 jẹ agbara kekere, idiju kekere, ibudo Ethernet mejiyipadati o ṣepọ a 10BASE-T1L PHY ati ki o kan Serial Agbeegbe Interface (SPI) ibudo. Ohun elo naa nlo oju ipa agbara kekere fun awọn ohun elo Ethernet Iṣẹ ati pe o ni ibamu pẹlu boṣewa IEEE® 802.3cg-2019™ Ethernet fun ijinna pipẹ 10 Mbps Single Pair Ethernet (SPE). Awọnyipada(ge-nipasẹ tabi itaja-ati-siwaju) atilẹyin ọpọ cabling atunto laarin awọn meji Ethernet ebute oko ati awọn SPI ogun ibudo, pese a rọ ojutu fun ila, daisy-pq tabi oruka nẹtiwọki topologies.
ADIN2111 ṣe atilẹyin titi di awọn mita 1700 ti arọwọto okun pẹlu agbara agbara-kekere ti 77 mW. Awọn ohun kohun PHY meji ṣe atilẹyin 1.0 V pp ati iṣẹ 2.4 V pp bi a ti ṣalaye ninu boṣewa IEEE 802.3cg ati pe o le ni agbara lati inu iṣinipopada 1.8 V tabi 3.3 V kan. ADIN2111 wa ni iṣeto ti a ko ṣakoso nibiti ẹrọ naa ṣe gbejade ijabọ laifọwọyi laarin awọn ebute oko oju omi Ethernet meji.
Awọn ẹrọ integrates ayipada, meji àjọlò ti ara Layer (PHY) ohun kohun pẹlu media wiwọle Iṣakoso (MAC) atọkun, ati gbogbo nkan ṣe afọwọṣe circuitry, input ki o si o wu aago buffering awọn ẹrọ. Ẹrọ naa tun pẹlu awọn isinyi ifipamọ inu, SPI ati awọn iforukọsilẹ subsystem, ati ọgbọn iṣakoso lati ṣakoso atunto ati iṣakoso aago ati iṣeto ni pin hardware.
ADIN2111 n ṣepọ awọn ipese ibojuwo ipese foliteji ati agbara-lori-atunṣe (POR) Circuit fun imudara agbara-ipele eto. SPI oni-waya 4 ti a lo lati ṣe ibaraẹnisọrọ pẹlu agbalejo le jẹ tunto bi OPEN Alliance SPI tabi Generic SPI. Awọn ipo mejeeji ṣe atilẹyin aabo data iyan tabi Ṣayẹwo Apọju Cyclic (CRC).
Kọọkan PHY ti ADIN2111 tun le tunto lati ṣe idalọwọduro ohun elo kan lẹhin atunto ohun elo (PIN RESET ti o fa kekere) nipa tito CRSM_HRD_RST_IRQ_EN bit ninu Iforukọsilẹ Iboju Iboju System PHY ti o baamu (CRSM_IRQ_MASK). Botilẹjẹpe a le lo awọn PHY mejeeji lati ṣe ipilẹṣẹ awọn idalọwọduro ohun elo, PHY 1 ni iṣeduro fun idi eyi. Lẹhin ti oluwa SPI ti gba idalọwọduro ohun elo lati PIN INT, bit PHYINT (lẹsẹsẹ, P2_PHYINT bit) lori iforukọsilẹ ipo 0 (lẹsẹsẹ, iforukọsilẹ ipo 1) tun ṣeto si 1, ti n sọ idilọwọ lati PHY 1 (lẹsẹsẹ, PHY). 2) . Orisun idalọwọduro naa le ṣe ayẹwo pẹlu lilo CRSM_HRD_RST_IRQ_LH bit ninu Iforukọsilẹ Ipo Idilọwọ Eto PHY ti o baamu (CRSM_IRQ_STATUS).
Fun ijẹrisi eto nipa lilo oluṣakoso agbalejo ita, PHY kọọkan ti ADIN2111 le beere lati ṣe idalọwọduro ohun elo lori PIN INT nipa lilo bit CRSM_SW_IRQ_REQ ninu Iforukọsilẹ Boju-boju System (CRSM_IRQ_MASK). Botilẹjẹpe a le lo awọn PHY mejeeji lati ṣe ipilẹṣẹ awọn idalọwọduro ohun elo, PHY 1 ni iṣeduro fun idi eyi. Lẹhin ti oluwa SPI ti gba idalọwọduro ohun elo lati PIN INT, bit PHYINT (lẹsẹsẹ, P2_PHYINT bit) ni ipo iforukọsilẹ 0 (lẹsẹsẹ, iforukọsilẹ ipo 1) tun ṣeto si 1, ti n sọ idilọwọ lati PHY 1 (lẹsẹsẹ, PHY). 2) . Orisun idalọwọduro le ṣe ayẹwo pẹlu lilo CRSM_SW_IRQ_LH bit ninu Iforukọsilẹ Ipo Idilọwọ Eto PHY ti o baamu (CRSM_IRQ_STATUS).
Kọọkan ADIN2111 PHY tun le ṣe idalọwọduro aṣiṣe eto kan. Awọn asia idalọwọduro naa wa ni abala ti a fi pamọ si apakan Iforukọsilẹ Ipo Idilọwọ Eto PHY ti o baamu (CRSM_IRQ_STATUS). Iforukọsilẹ iboju iparada eto (CRSM_IRQ_MASK) gbọdọ wa ni tunto lori PHY ti o baamu lati jẹ ki awọn idilọwọ aṣiṣe eto ṣiṣẹ. Wo Tabili 212 fun awọn alaye lori idalọwọduro iboju. ADIN2111 gbọdọ tunto ohun elo kan lati gba pada lati idalọwọduro aṣiṣe eto lati ọkan ninu awọn PHY meji (CRSM_IRQ_STATUS ti o wa ni ipamọ bit ka 1 lori PHY oniwun).
ADIN2111 pẹlu Circuit ibojuwo ipese agbara lati rii daju pe chirún ni ipese foliteji to dara ṣaaju ki o to bẹrẹ ilana-agbara. Lakoko agbara-agbara, ADIN2111 wa ni ipo atunto ohun elo titi ti ipese kọọkan ti kọja iloro ti o ga julọ ti o kere ju ati pe ipese naa ni a ka pe o dara.
Atunto ohun elo jẹ ipilẹṣẹ nipasẹ iyika atunto agbara-lori tabi nipa wiwakọ PIN RESET kekere fun o kere ju 10 µs. ADIN2111 pẹlu Circuit deglitch lori pin yii lati kọ awọn isọdi ti o kuru ju 1 µs. Nigba ti PIN RESET ti wa ni deasserted, gbogbo input / o wu (Mo / awọn) pinni wa ni tri-ipinle mode, hardware iṣeto ni pinni ti wa ni latched, ati I / Eyin pinni ti wa ni tunto si wọn iṣẹ mode. Circuit oscillator gara ti ṣiṣẹ nigbati gbogbo awọn ipese agbara ita ati inu jẹ wulo ati iduroṣinṣin. Lẹhin ti kristali ti bẹrẹ ati iduroṣinṣin, lupu titiipa alakoso (PLL) ti ṣiṣẹ. Lẹhin idaduro 90 ms (max) lẹhin PIN RESET jẹ deasserted, gbogbo awọn aago inu ti wa ni idaniloju, oye inu inu ti tu silẹ lati tunto, ati gbogbo awọn iforukọsilẹ SPI ti inu, PHY 1 ati PHY 2 wa lati ọdọ SPI. Iṣẹjade aago CLK25_REF wa ni kekere nigbati PIN RESET ti wa ni kekere ti o si wa ni kekere fun 70 ms (max) lẹhin ti PIN RESET ti dinku.
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