Sebopeho sa Microsemi SmartDesign MSS GPIO
SmartFusion Microcontroller Subsystem (MSS) e fana ka GPIO hard peripheral (APB_1 sub bese) e nang le li-GPIO tse 32 tse lokisehang. Boitšoaro ba sebele ba GPIO e 'ngoe le e' ngoe (ho kenya letsoho, ho hlahisa le ho tsoa ho etsa hore ho be le taolo ea ho ngolisa, mekhoa ea ho sitisa, joalo-joalo) e ka hlalosoa boemong ba kopo ho sebelisa SmartFusion MSS GPIO Driver e fanoeng ke Actel. Leha ho le joalo, o tlameha ho hlalosa hore na GPIO e hokahane ka kotloloho le padi ea kantle (MSS I/O) kapa lesela la FPGA. Karolo ena ea tlhophiso ea sesebelisoa e etsoa ka ho sebelisa MSS GPIO configurator mme e hlalositsoe tokomaneng ena.
Bakeng sa lintlha tse ling mabapi le peripheral e thata ea MSS GPIO, ka kopo sheba Tataiso ea mosebelisi ea Actel SmartFusion Microcontroller Subsystem.
Dikgetho tsa kgokelo
MSS I/O Pad - Khetha khetho ena ho bontša hore GPIO e khethiloeng e tla hokahanngoa le pad e inehetseng e kantle (MSS I/O). U tlameha ho khetha mofuta oa buffer ea I/O - INBUF, OUTBUF, TRIBUFF le BIBUF - e tla hlalosa hore na MSS I/O pad e lokisoa joang. Hlokomela hore khetho ena e kanna ea se be teng haeba MSS I/O e se e sebelisoa ke peripheral e 'ngoe kapa lesela (sheba karolo ea MSS I/O Sharing bakeng sa lintlha tse ling)
Lesela - Khetha khetho ena ho bontša hore GPIO e khethiloeng e tla hokahanngoa le lesela la FPGA. U tlameha ho khetha hore na u batla hore likhokahano tsa GPI (Input), GPO (Output) kapa bobeli ba GPI le GPO (Input/Output) li ntšetsoe ho hokela lesela. Hlokomela hore GPIO e etsa hore registere e khonehe e ke ke ea hlahisoa lesela ha khetho ena e khethoa. Hape, li-GPI tse hoketsoeng leselang li ka baka tšitiso ho tsoa mohopolong oa mosebelisi haeba tšitiso e loketseng e lumella li-bits li setiloe hantle ke sesebelisoa sa hau (mesebetsi ea ho qala mokhanni oa MSS GPIO).
Kabelo ea MSS I/O
Moahong oa SmartFusion li-MSS I/O li arolelanoa lipakeng tsa li-peripheral tse peli tsa MSS kapa lipakeng tsa peripheral ea MSS le lesela la FPGA. Li-MSS GPIO li kanna tsa se khone ho hokela ho MSS I/O e itseng haeba I/Os ena e se e hokahantsoe le peripheral ea MSS kapa lesela la FPGA. GPIO configurator e fana ka maikutlo a tobileng mabapi le hore na GPIO e ka hokeloa ho MSS I/O kapa che.
GPIO[31:16]
GPIO[31:16] li hlophisitsoe ka lihlopha tse bontšang hore na ba arolelana li-MSS I/O le life. Haeba ho sebelisoa peripheral (e nolofalitsoeng ho canvas ea MSS), joale lenane la ho hula la MSS I/O Pad le putsoa bakeng sa li-GPIO tse tsamaellanang le tsona 'me letšoao la Info le bonts'oa haufi le lethathamo la ho hula. Letšoao la Info le bontša hore khetho ea MSS I/O e ke ke ea khethoa hobane e se e sebelisoa ke peripheral ea MSS kapa, ho ipapisitsoe le sephutheloana se khethiloeng, se sa tlanngoeng.
Example 1
SPI_0, SPI_1, I2C_0, I2C_1, UART_0 le UART_1 li lumelletsoe ka har'a canvas ea MSS.
- GPIO[31:16] ha e khone ho hokela ho MSS I/O. Ela hloko dimenu tse putswang le diaekhone tsa Info (Setshwantsho 1-1).
- GPIO[31:15] e ntse e ka hokahanngoa le lesela la FPGA. Ho sena mohlalaample, GPIO[31] e hokahane le lesela joalo ka Output le GPIO[30] joalo ka Kenyeletso.
Example 2
I2C_0 le I2C_1 li timiloe ho MSS canvas.
- GPIO[31:30] le GPIO[23:22] li ka kopanngoa le MSS I/O (joalokaha ho bontšitsoe setšoantšong 1-2).
- Ho sena mohlalaample, GPIO[31] le GPIO[30] li hokahane le MSS I/O joalo ka likou tsa Output.
- Ho sena mohlalaample, GPIO[23] e hokahane le MSS I/O joalo ka Kou ea ho Kena 'me GPIO[22] e hokahane le MSS I/O joalo ka kou ea Bidirectional.
- GPIO[29:24,21:16] e ke ke ea hokela ho MSS I/O. Ela hloko dimenu tse putswang le diaekhone tsa Info.
- GPIO[29:24,21:16] e ntse e ka hokahanngoa le lesela la FPGA. Ho sena mohlalaample, GPIO[29] le GPIO[28] li hokahane le lesela joalo ka likou tsa Input.
GPIO[15:0]
GPIO[15:0] arolelana MSS I/Os e ka hlophisoang hore e hokahane le lesela la FPGA (tokisetso ena ea morao-rao e ka etsoa ho sebelisoa MSS I/O Configurator). Haeba MSS I/O e lokiselitsoe ho hokela lesela la FPGA, joale MSS I/O Pad drop-down menu e putswa bakeng sa li-GPIO tse tsamaellanang tse arolelanoang le letšoao la Info le bonts'oa haufi le lethathamo la ho hula. Letšoao la Info le bontša hore khetho ea MSS I/O e ke ke ea khethoa hobane e se e sebelisitsoe kapa, ho ipapisitsoe le sephutheloana se khethiloeng, ha se tlameletsoe.
Hlokomela hore mongolo o moputsoa ho configurator o totobatsa lebitso la pini ea sephutheloana bakeng sa MSS I/O ka 'ngoe e amanang le GPIO. Tlhahisoleseding ena e molemo bakeng sa moralo oa boto ea moralo.
Example
Ho bonts'a hantle hore na litlhophiso tsa MSS I / O le GPIO [15:0] li kopantsoe joang, Setšoantšo sa 1-3 se bonts'a li-configurator ka bobeli ka lehlakore le tlhophiso e latelang:
- MSS I/O[15] e sebelisoa joalo ka boema-kepe ba INBUF bo hokahaneng le lesela la FPGA. Ka lebaka leo, GPIO[15] ha e khone ho hokela ho MSS I/O.
- GPIO[5] e hokahane le MSS I/O joalo ka Kenyeletso. Ka lebaka leo MSS I/O[5] e ke ke ea sebelisoa ho hokela lesela la FPGA.
- GPIO[3] e hokahane le lesela la FPGA joalo ka Output. Ka lebaka leo MSS I/O[3] e ke ke ea sebelisoa ho hokela lesela la FPGA.
Tlhaloso ea Boema-kepe
Lethathamo la 2-1 • Tlhaloso ea Boema-kepe ba GPIO
| Lebitso la Port | Tataiso | PAD? | Tlhaloso |
| GPIO_ _IN | In | Ee | Lebitso la boema-kepe la GPIO ha GPIO[index] e hlophisoa joalo ka MSS I/O Kenyeletso
boemakepe |
| GPIO_ _TSOA | Tsoa | Ee | Lebitso la boema-kepe la GPIO ha GPIO[index] e hlophisoa joalo ka MSS I/O Sephetho
boemakepe |
| GPIO_ _TRI | Tsoa | Ee | Lebitso la boema-kepe la GPIO ha GPIO[index] e hlophisoa joalo ka MSS I/O
Tristate boemakepe |
| GPIO_ _BI | Inout | Ee | Lebitso la boema-kepe la GPIO ha GPIO[index] e hlophisoa joalo ka MSS I/O ea litsela tse peli boemakepe |
| F2M_GPI_ | In | Che | Lebitso la boema-kepe la GPIO ha GPIO[index] e lokisetsoa ho hokela lesela la FPGA joalo ka Kenyeletso boema-kepe (F2M e bonts'a hore lets'oao le tloha lesela ho ea ho MSS) |
| M2F_GPO_ | In | Che | Lebitso la boema-kepe la GPIO ha GPIO[index] e lokisetsoa ho hokela lesela la FPGA joalo ka Sephetho boema-kepe (M2F e bonts'a hore lets'oao le tloha ho MSS ho ea lesela) |
Hlokomela:
- Boema-kepe ba PAD bo phahamisetsoa ka bohona ho ea holimo maemong a meralo eohle.
- Boemakepe boo eseng ba PAD bo tlameha ho phahamisoa ka letsoho ho isa boemong bo holimo ho tloha ho sekontiri sa MSS hore se be teng e le boemo bo latelang ba bolaoli.
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Litokomane / Lisebelisoa
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Sebopeho sa Microsemi SmartDesign MSS GPIO [pdf] Bukana ea Mosebelisi SmartDesign MSS GPIO, Configuration, SmartDesign MSS GPIO Configuration, SmartDesign MSS |
