MICROCHIP Core16550 Universal Asynchronous Receiver Transmitter
Selelekela
Core16550 ke Universal Asynchronous Receiver-Transmitter (UART) e netefatsang hore software e lumellana le sesebelisoa sa 16550 se sebelisoang haholo. E sebetsana le phetoho ea data ea serial-to-parallel bakeng sa lisebelisoa tse tsoang ho modem kapa lisebelisoa tse ling tsa serial 'me e etsa phetoho e tšoanang-to-serial bakeng sa data e rometsoeng ho tloha CPU ho lisebelisoa tsena.
Nakong ea phetisetso, data e ngoloa ka ho bapa le buffer ea UART ea First-In, First-Out (FIFO). Ka mor'a moo, data e hlophisitsoe bakeng sa tlhahiso. Ha e amohela, UART e fetola data ea serial e kenang hore e be e tšoanang 'me e nolofalletsa processor hore e fihle habonolo.
Tšebeliso e tloaelehileng ea 16550 UART e bontšitsoe setšoantšong se latelang.
Setšoantšo sa 1. Kopo e tloaelehileng ea 16550
Lethathamo la 1. Kakaretso ea Core16550
Likarolo tsa Bohlokoa
Lintlha tse latelang ke tsa bohlokoa tsa Core16550:
- Transmitter le receiver e 'ngoe le e 'ngoe e na le li-FIFO tse fihlang ho 16-byte ho fokotsa palo ea litšitiso tse hlahisoang ho CPU.
- E eketsa kapa e hlobola likaroloana tse tloaelehileng tsa puisano tse sa lumellaneng (Qala, Emisa le Parity).
- Phetiso e laoloang ka boikemelo, amohela, boemo ba mohala le sete ea data e sitisa
- Jenereithara ea baud e ka khonehang
- Mesebetsi ea taolo ea modem (CTSn, RTSn, DSRn, DTRn, RIn le DCDn).
- Sehokelo sa ngodiso sa Advanced Peripheral Bus (APB).
Likarolo tse Khaotsoeng
Haholo-holo High Speed Integrated Circuit (VHSIC) Hardware Description Language (VHDL) tshehetso e tla kgaotswa phetolelong ena.
Core16550 Fetola Boitsebiso ba Log
Karolo ena e fana ka tlhaloso e qaqilengview ea likarolo tse sa tsoa kenyelletsoa, ho qala ka tokollo ea morao-rao.
| Phetolelo | Tse ncha ke life |
| Setšoantšo sa Core16550 V3.4 | Core16550 e sebelisa lentsoe la bohlokoa la "verilog" e le lebitso la ngoliso le neng le baka bothata ba phoso ea syntax. Lebitso la sehlooho le nkeloa sebaka ke lebitso le leng ho rarolla bothata bona.
E kenyellelitse tšehetso ea lelapa ea PolarFire® |
| Setšoantšo sa Core16550 V3.3 | Tšehetso ea lelapa e ekelitsoeng ea Radiation-tolerant FPGA (RTG4™). |
- Tlhaloso ea Block Block (Botsa Potso)
Karolo ena e fana ka tlhaloso e khutšoanyane bakeng sa karolo e 'ngoe le e' ngoe ea setšoantšo sa block block joalokaha ho bontšitsoe setšoantšong se latelang.
Setšoantšo sa 1-1. Setšoantšo sa Core16550 Block
Likarolo tsa Sets'oants'o sa Ka hare sa Block Block (Botsa Potso)
Karolo e latelang e fana ka tlhahisoleseling mabapi le likarolo tsa setšoantšo sa block block.
- RWControl (Botsa Potso)
Sebaka sa RWControl se na le boikarabelo ba ho sebetsana le puisano le lehlakore la processor (parallel) la tsamaiso. Ho ngoloa le ho baloa hohle ha li-Internal registers ho finyelloa ka boloko bona. - UART_Reg (Botsa Potso)
Sebaka sa UART_Reg se boloka lisebelisoa tsohle tsa ka hare tsa lisebelisoa. - RXBlock (Botsa Potso)
Ena ke sebaka sa ho amohela. RXBlock e amohela lentsoe la serial le kenang. Hoa khoneha ho lemoha bophara ba data, joalo ka 5, 6, 7 kapa 8 bits; litlhophiso tse fapaneng tsa tekano, joalo ka ho lekana, ho sa tloaelehang kapa ho se leka-lekane; le likotoana tse fapaneng tsa ho emisa, joalo ka 1, 1½ le 2 bits. RXBlock e hlahloba liphoso ho phallo ea data e kentsoeng, joalo ka liphoso tse fetelletseng, liphoso tsa foreimi, liphoso tsa tekano le liphoso tsa khefu. Haeba lentsoe le kenang le se na mathata, le kenngoa ho moamoheli FIFO. - Khatiso ea Taolo (Botsa Potso)
The Interrupt Control block e romela letšoao la tšitiso ho processor, ho latela boemo ba FIFO le data ea eona e amoheloang le e fetisoang. Rejistara ea Boitsebiso ba Khatiso e fana ka boemo ba tšitiso. Litšitiso li romeloa bakeng sa li-buffer tse se nang letho tsa phetisetso / lirisiti (kapa li-FIFO), phoso ea ho amohela sebapali, kapa maemo a mang a hlokang tlhokomelo ea processor. - Baud Rate Generator (Botsa Potso)
Thibelo ena e nka PCLK e kenang 'me e e arola ka boleng bo hlophisitsoeng (ho tloha ho 1 ho ea ho 216 - 1). Sephetho se arotsoe ka 16 ho theha oache ea phetiso (BAUDOUT). - TXBlock (Botsa Potso)
Thibelo ea Transmit e sebetsana le phetiso ea data e ngotsoeng ho Transmit FIFO. E eketsa li-bits tse hlokahalang tsa Qala, Parity le Stop ho data e fetisoang e le hore sesebelisoa se amohelang se ka etsa phoso e nepahetseng ea ho sebetsana le ho amohela.
Software Interface (Botsa Potso)
Litlhaloso tsa ngoliso ea Core16550 le limmapa tsa liaterese li hlalositsoe karolong ena. Tafole e latelang e bonts'a kakaretso ea ngoliso ea Core16550.
| PADDR[4:0]
(Aterese) |
Divisor Latch Access Bit1
(DLAB) |
Lebitso | Letšoao | Boleng ba kamehla (seta bocha). | No. ea Bits | Bala/Ngola |
| 00 | 0 | Receiver Buffer Register | RBR | XX | 8 | R |
| 00 | 0 | Transmitter Holding Register | THR | XX | 8 | W |
| 00 | 1 | Latch ea ho arola (LSB) | DLR | 01h | 8 | R/W |
| 04 | 1 | Latch ea ho arola (MSB) | DMR | 00h | 8 | R/W |
| 04 | 0 | Thibela Rejistara ea ho Khaotsa | IER | 00h | 8 | R/W |
| 08 | X | Thibela Ngoliso ea Boitsebiso | IIR | C1h | 8 | R |
| 08 | X | FIFO Control Register | FCR | 01h | 8 | W |
| 0C | X | Ngoliso ea Taolo ea Line | LCR | 00h | 8 | R/W |
| 10 | X | Ngoliso ea Taolo ea Modem | MCR | 00h | 8 | R/W |
| 14 | X | Ngoliso ea Boemo ba Line | LSR | 60h | 8 | R |
| 18 | X | Ngoliso ea Boemo ba Modem | MSR | 00h | 8 | R |
| 1C | X | Ngola Ngola | SR | 00h | 8 | R/W |
Bohlokoa
DLAB ke MSB ea Line Control Register (LCR bit 7).
Receiver Buffer Register (Botsa Potso)
Rejisetara ea Receiver Buffer e hlalositsoe tafoleng e latelang.
Lethathamo la 1-2. Receiver Buffer Register (Bala Feela)—Aterese 0 DLAB 0
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 7..0 | RBR | XX | 0..FFh | E amohetse likotoana tsa data. Bit 0 ke LSB, 'me ke karolo ea pele e amoheloang. |
Transmitter Holding Register (Botsa Potso)
Rejistara ea Transmitter Holding e hlalositsoe tafoleng e latelang.
Lethathamo la 1-3. Transmitter Holding Register—Ngola Feela
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 7..0 | THR | XX | 0..FFh | Ho fetisetsa likotoana tsa data. Bit 0 ke LSB, 'me e fetisoa pele. |
FIFO Control Register (Botsa Potso)
Rejisetara ea Taolo ea FIFO e hlalositsoe tafoleng e latelang.
| Likotoana (7:0) | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 0 | 1 | 0, 1 | E nolofalletsa ka bobeli Transceiver (Tx) le Receiver (Rx) FIFOs. Biti ena e tlameha ho hlophisoa ho 1 ha li-bits tse ling tsa FCR li ngolloa kapa li ke ke tsa hlophisoa.
0: E holofetse 1: E lumelletsoe |
| 1 | 0 | 0, 1 | E hlakola li-byte tsohle ho Rx FIFO mme e seta botjha logic ea eona. Rejistara ea Shift ha e so hlakoloe.
0: E holofetse 1: E lumelletsoe |
| 2 | 0 | 0, 1 | E hlakola li-byte tsohle ho Tx FIFO mme e seta botjha logic ea eona. Rejistara ea Shift ha e so hlakoloe.
0: E holofetse 1: E lumelletsoe |
| 3 | 0 | 0, 1 | 0: Phetisetso e le 'ngoe DMA: Phetisetso e entsoe lipakeng tsa lipotoloho tsa libese tsa CPU
1: Multi-transfer DMA: Ho fetisoa ho etsoa ho fihlela Rx FIFO e se na letho kapa Transmission System Operator (TSO) Transmit (XMIT) FIFO e tletse. FCR[0] e tlameha ho hlophisoa ho 1 ho beha FCR[3] ho 1. |
| 4, 5 | 0 | 0, 1 | E boloketsoe tšebeliso ea nako e tlang. |
| 6, 7 | 0 | 0, 1 | Li-bits tsena li sebelisetsoa ho beha boemo ba trigger bakeng sa tšitiso ea Rx FIFO. 7 6 Rx FIFO Trigger Level (byte)
0 0 01 0 1 04 1 0 08 1 1 14 |
Ngoliso ea Litaolo tsa Divisor (Botsa Potso)
Oache ea Baud Rate (BR) e hlahisoa ka ho arola oache ea ho kenya letsoho (PCLK) ka 16 le boleng ba divisor.
Lethathamo le latelang le thathamisa example ea boleng ba divisor bakeng sa BR e lakatsehang ha o sebelisa oache ea tšupiso ea 18.432 MHz.
Lethathamo la 1-5. Divisor Latch (LS le MS)
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 7..0 | DLR | 01h | 01..FFh | LSB ea boleng ba divisor |
| 7..0 | DMR | 00h | 00..FFh | MSB ea boleng ba divisor |
Lethathamo la 1-6. Baud Rates le Divisor Values bakeng sa 18.432 MHz Reference Clock
| Baud Rate | Decimal Divisor (Boleng ba Karohano) | Phesente Phoso |
| 50 | 23040 | 0.0000% |
| 75 | 15360 | 0.0000% |
| 110 | 10473 | -0.2865% |
| 134.5 | 8565 | 0.0876% |
| 150 | 7680 | 0.0000% |
| 300 | 3840 | 0.0000% |
| 600 | 1920 | 0.0000% |
| 1,200 | 920 | 4.3478% |
| 1,800 | 640 | 0.0000% |
| Baud Rate | Decimal Divisor (Boleng ba Karohano) | Phesente Phoso |
| 2,000 | 576 | 0.0000% |
| 2,400 | 480 | 0.0000% |
| 3,600 | 320 | 0.0000% |
| 4,800 | 240 | 0.0000% |
| 7,200 | 160 | 0.0000% |
| 9,600 | 120 | 0.0000% |
| 19,200 | 60 | 0.0000% |
| 38,400 | 30 | 0.0000% |
| 56,000 | 21 | -2.0408% |
Thibela Ngoliso e Nolofatsa (Botsa Potso)
Rejistara ea Thibela Enable e hlalositsoe tafoleng e latelang.
Lethathamo la 1-7. Thibela Rejistara ea ho Khaotsa
| Bits | Lebitso | Boemo ba kamehla | Naha e sebetsang | Mosebetsi |
| 0 | ERBFI | 0 | 0, 1 | E nolofalletsa "Data e Amoheletsoeng e Fumanehang Khatiso" 0: E holofetse
1: E lumelletsoe |
| 1 | ETBEI | 0 | 0, 1 | E nolofalletsa "Transmitter Holding Registering" 0: E holofetse
1: E lumelletsoe |
| 2 | ELSI | 0 | 0, 1 | E nolofalletsa "Receiver Line Status Interrupt" 0: E holofetse
1: E lumelletsoe |
| 3 | EDSSI | 0 | 0, 1 | E nolofalletsa "Modem Status Interrupt" 0: E holofetse
1: E lumelletsoe |
| 7..4 | Reserved | 0 | 0 | Kamehla 0 |
Thibela Ngoliso ea Boitsebiso (Botsa Potso)
Rejistara ea Boitsebiso ba Khatiso e thathamisitsoe lethathamong le latelang. Lethathamo la 1-8. Thibela Ngoliso ea Boitsebiso
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 3..0 | IIR | 1h | 0..Ch | Khaotsa likarolo tsa boitsebiso. |
| 5..4 | Reserved | 00 | 00 | Kamehla 00 |
| 7..6 | Mokhoa | 11 | 11 | 11: Mokhoa oa FIFO |
Sebaka sa rejisetara ea Identification ea Interrupt se hlalositsoe tafoleng e latelang.
Lethathamo la 1-9. Sebaka sa Ngoliso ea Boitsebiso (IIR)
| Boleng ba IIR[3:0)] | Boemo ba Pele | Mofuta oa Khatiso | Khaotsa Mohloli | Khaotsa Taolo ea Reset |
| 0110 | Phahameng ka ho fetisisa | Boemo ba mohala oa moamoheli | Phoso e fetelletseng, phoso ea ho leka-lekanya, phoso ea ho etsa frame kapa tšitiso ea ho robeha | Ho bala Rejisetara ea Boemo ba Line |
| 0100 | Ea bobeli | Lintlha tse fumanoeng li fumaneha | Lintlha tsa moamoheli lia fumaneha | Ho bala rejisetara ea Receiver Buffer kapa FIFO e theohela ka tlase ho boemo ba ho qala |
| Tafole 1-9. Sebaka sa Ngoliso ea Boitsebiso ba Khatiso (IIR) (tsoela pele) | ||||
| Boleng ba IIR[3:0)] | Boemo ba Pele | Mofuta oa Khatiso | Khaotsa Mohloli | Khaotsa Taolo ea Reset |
| 1100 | Ea bobeli | Sesupo sa nako e felileng | Ha ho litlhaku tse baloang ho tsoa ho Rx FIFO nakong ea linako tse fetileng tsa batho ba bane mme bonyane ho ne ho e-na le motho a le mong ho eona nakong ena. | Ho bala rejisetara ea Receiver Buffer |
| 0010 | Ea boraro | Transmitter Holding registerer ha e na letho | Transmitter Holding registerer ha e na letho | Ho bala IIR kapa ho ngola ka har'a rejisetara ea Transmitter Holding |
| 0000 | Ea bone | Boemo ba modem | Hlakile ho Romela, Data Set Ready, Ring Indicator kapa Data Carrier Detect | Ho bala rejisetara ea Boemo ba Kajeno |
Ngoliso ea Taolo ea Line (Botsa Potso)
Rejisetara ea Taolo ea Line e thathamisitsoe lethathamong le latelang. Lethathamo la 1-10. Ngoliso ea Taolo ea Line
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 1..0 | WLS | 0 | 0..3h | Bolelele ba Lentsoe Kgetha 00: 5 bits
01:6 likotoana 10:7 likotoana 11:8 likotoana |
| 2 | STB | 0 | 0, 1 | Palo ea Stop Bits 0: 1 Stop bit
1: 1½ Emisa likotoana ha WLS = 00 2: Emisa likotoana maemong a mang |
| 3 | PEN | 0 | 0, 1 | Parity Noble 0: E holofetse
1: E lumelletsoe. Parity e eketsoa phetisong le ho hlahlojoa ho amohela. |
| 4 | EPS | 0 | 0, 1 | Esita le Parity Khetha 0: Odd parity
1 : Esita le ho lekana |
| 5 | SP | 0 | 0, 1 | Stick Parity 0: E holofetse
1: E lumelletsoe Lintlha tse latelang ke tsa parity, ha stick parity e nolofalitsoe: Bits 4..3 11: 0 e tla romelloa e le Parity bit, 'me e hlahlojoe ho amohela. 01: 1 e tla romelloa e le Parity bit, 'me e hlahlojoe ho amohela. |
| 6 | SB | 0 | 0, 1 | Beha Phomolo 0: E holofetse
1: Beha khefu. SOUT e qobelloa ho 0. Sena ha se na phello leha e le efe ho logic ea transmitter. Phomolo e holofalitsoe ka ho beha hanyane ho 0. |
| 7 | DLAB | 0 | 0, 1 | Divisor Latch Access Bit
0: E holofetse. Mokhoa o Tloaelehileng oa Aterese o sebelisoa. 1: E lumelletsoe. E nolofalletsa phihlello ea direjistara tsa Divisor Latch nakong ea ts'ebetso ea ho bala kapa ho ngola ho aterese ea 0 le 1. |
Ngoliso ea Taolo ea Modem (Botsa Potso)
Rejistara ea Taolo ea Modem e thathamisitsoe lethathamong le latelang.
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 0 | DTR | 0 | 0, 1 | E laola tlhahiso ea Data Terminal Ready (DTRn). 0: DTRn <= 1
1: DTRn <= 0 |
| 1 | RTS | 0 | 0, 1 | E laola tlhahiso ea Kopo ea ho Romela (RTSn). 0: RTSn <= 1
1: RTSn <= 0 |
| 2 | Tsoa1 | 0 | 0, 1 | E laola lets'oao la Output1 (OUT1n). 0: OUT1n <= 1
1: OUT1n <= 0 |
| 3 | Tsoa2 | 0 | 0, 1 | E laola lets'oao la Output2 (OUT2n). 0: OUT2n <= 1
1: OUT2n <= 0 |
| 4 | Loop | 0 | 0, 1 | Loop nolofalletsa hanyane 0: E holofetse
1: E lumelletsoe. Se latelang se etsahala ka Loop mode: SOUT e setetswe ho 1. Maikutlo a SIN, DSRn, CTSn, RIn le DCDn a kgaotswe. Sephetho sa rejistara ea Transmitter Shift se khutlisetsoa ka har'a rejisetara ea Receiver Shift. Liphetho tsa taolo ea modem (DTRn, RTSn, OUT1n le OUT2n) li e kopantsoe ka hare ho lisebelisoa tsa taolo ea modem, 'me lisebelisoa tsa ho laola modem li behiloe ho 1. Ka mokhoa oa Loopback, data e fetisitsoeng e amoheloa hang-hang, e lumellang CPU ho hlahloba ts'ebetso ea UART. Litšitiso li sebetsa ka mokhoa oa Loop. |
| 7..4 | Reserved | 0h | 0 | Reserved |
Ngoliso ea Boemo ba Line (Botsa Potso)
Rejistara ea Boemo ba Line e hlalositsoe tafoleng e latelang.
Lethathamo la 1-12. Ngoliso ea Boemo ba Line—Bala Feela
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 0 | DR | 0 | 0, 1 | Data Ready indicator
1 ha data byte e amohetsoe le ho bolokoa ka har'a buffer kapa FIFO. DR e hlakotsoe ho 0 ha CPU e bala data ho tsoa ho buffer e amohelang kapa FIFO. |
| 1 | OE | 0 | 0, 1 | Overrun Error indicator
E bontša hore byte e ncha e amohetsoe pele CPU e bala li-byte ho tsoa ho buffer, le hore data byte ea pejana e senyehile. OE e hlakotsoe ha CPU e bala Registara ea Boemo ba Line. Haeba data e ntse e tsoela pele ho tlatsa FIFO ka nģ'ane ho boemo ba trigger, phoso ea overrun e etsahala hang ha FIFO e tletse 'me sebopeho se latelang se felile ka ho feletseng. e amohetsoe ka har'a rejisetara ea Shift. Sebopeho se bukeng ea Shift se ngotsoe holimo, empa ha se fetisetsoe ho FIFO. |
| 2 | PE | 0 | 0, 1 | Letšoao la Phoso ea Parity
E bontša hore byte e amohetsoeng e na le phoso ea ho lekana. PE e hlakoloa ha CPU e bala Rejisetara ea Boemo ba Line. Phoso ena e senoloa ho CPU ha sebopeho sa eona se amanang le sona se le kaholimo ho FIFO. |
| 3 | FE | 0 | 0, 1 | Letšoao la Phoso ea Framing
E bontša hore byte e amohetsoeng ha e na Stop bit e nepahetseng. FE e hlakoloa ha CPU e bala rejisetara ea Boemo ba Line. UART e tla leka ho hokahanya hape kamora phoso ea ho etsa moralo. Ho etsa sena, ho nka hore phoso ea ho theha e ne e bakoa ke karolo e latelang ea Qala, kahoo e samples ena Qala hanyane habeli, ebe o qala ho amohela data. Phoso ena e senoloa ho CPU ha sebopeho sa eona se amanang le sona se le kaholimo ho FIFO. |
| Lethathamo la 1-12. Ngoliso ea Boemo ba Mohala—E Bala Feela (e tsoela pele) | ||||
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 4 | BI | 0 | 0, 1 | Sesupo sa Khaohano
E bontša hore data e amohetsoeng e ho 0, e telele ho feta nako e felletseng ea phetisetso ea mantsoe (Start bit + Likotoana tsa data + Parity + Stop bits). BI e hlakoloa ha CPU e bala Rejisetara ea Boemo ba Line. Phoso ena e senoloa ho CPU ha sebopeho sa eona se amanang le sona se le kaholimo ho FIFO. Ha khefu e etsahala, ho kenngoa tlhaku e le 'ngoe feela ho FIFO. |
| 5 | KHOTHATSO | 1 | 0, 1 | Transmitter Holding Register Empty (THRE) pontshi
E bontša hore UART e se e loketse ho fetisetsa byte e ncha ea data. THRE e baka tšitiso ho CPU ha bit 1 (ETBEI) ho Interrupt Enable register ke 1. Ntho ena e behiloe ha TX FIFO e se na letho. E hlakoloa ha bonyane baiti e le 'ngoe e ngolloa TX FIFO. |
| 6 | TEMT | 1 | 0, 1 | Sesupo se se nang letho sa Transmitter
Karolo ena e behiloe ho 1 ha li-register tsa transmitter FIFO le Shift li se na letho. |
| 7 | FIER | 0 | 1 | Karoloana ena e behiloe ha bonyane ho na le phoso e le 'ngoe ea tekano, phoso ea ho theha kapa pontšo ea khefu ho FIFO. FIER e hlakoloa ha CPU e bala LSR haeba ho se na liphoso tse latelang ho FIFO. |
Ngoliso ea Boemo ba Modem (Botsa Potso)
Rejistara ea Boemo ba Modem e thathamisitsoe lethathamong le latelang.
Lethathamo la 1-13. Ngoliso ea Boemo ba Modem—Bala Feela
| Bits | Lebitso | Boemo ba kamehla | Linaha tse nepahetseng | Mosebetsi |
| 0 | DCTS | 0 | 0, 1 | Delta Hlakile ho Romela sesupo.
E bontša hore tlhahiso ea CTSn e fetotse boemo ho tloha nakong ea ho qetela ha e baloa ke CPU. |
| 1 | DDSR | 0 | 0, 1 | Delta Data Set Ready indicator
E bontša hore tlhahiso ea DSRn e fetotse boemo ho tloha nakong ea ho qetela ha e baloa ke CPU. |
| 2 | TERI | 0 | 0, 1 | Mohaho o monyane oa sesupo sa Ring Indicator. E bontša hore tlhahiso ea RI e fetohile ho tloha ho 0 ho ea ho 1. |
| 3 | DDCD | 0 | 0, 1 | Letšoao la Delta Data Carrier Detect le bontša hore ho kenya DCD ho fetotse boemo.
Tlhokomeliso: Neng kapa neng ha bit 0, 1, 2 kapa 3 e setetsoe ho 1, tšitiso ea Boemo ba Modem e ea hlahisoa. |
| 4 | CTS | 0 | 0, 1 | Hlakileng ho Romela
Tlatsetso ea tlhahiso ea CTSn. Ha bit 4 ea Rejistara ea Taolo ea Modem (MCR) e behiloe ho 1 (loop), bitana ena e lekana le DTR ho MCR. |
| 5 | DSR | 0 | 0, 1 | Boitsebiso bo Loketse
Tlatsetso ea tlhahiso ea DSR. Ha bit 4 ea MCR e behiloe ho 1 (loop), karoloana ena e lekana le RTSn ho MCR. |
| 6 | RI | 0 | 0, 1 | Sesupo sa Lesale
Tlatsetso ea RIn input. Ha bit 4 ea MCR e behiloe ho 1 (loop), bitana ena e lekana le OUT1 ho MCR. |
| 7 | DCD | 0 | 0, 1 | Fumana Moemeli oa Boitsebiso
Tlatsetso ea ho kenya DCDn. Ha bit 4 ea MCR e behiloe ho 1 (loop), karoloana ena e lekana le OUT2 ho MCR. |
Ngola Ngola (Botsa Potso)
Rejistara ea Scratch e hlalositsoe tafoleng e latelang.
| Bits | Lebitso | Boemo ba kamehla | Mosebetsi |
| 7..0 | SCR | 00h | Bala/Ngola rejisetara bakeng sa CPU. Ha ho na litlamorao ts'ebetsong ea UART. |
Tool Flow (Botsa Potso)
Karolo ena e fana ka lintlha tse mabapi le phallo ea lisebelisoa.
SmartDesign (Botsa Potso)
Core16550 e fumaneha bakeng sa ho khoasolla tikolohong ea moralo oa phano ea SmartDesign IP. Motheo o lokisoa ho sebelisoa GUI ea tlhophiso ka har'a SmartDesign, bona setšoantšo se latelang.
Ho fumana leseli mabapi le mokhoa oa ho sebelisa SmartDesign ho tiisa, ho lokisa, ho hokahanya le ho hlahisa li-cores, bona SmartDesign User Guide.
Setšoantšo sa 2-1. Setšoantšo sa Core16550
Ketsiso e Phallang (Botsa Potso)
Testbench ea mosebelisi bakeng sa Core16550 e kenyellelitsoe ho litokollo tsohle.
Ho etsa lipapiso, khetha khetho ea User Testbench Flow ka har'a SmartDesign ebe o tobetsa Hlahisa Moralo tlas'a menu ea SmartDesign. Mosebelisi oa testbench o khethoa ka Core Testbench Configuration GUI.
Ha SmartDesign e hlahisa morero oa Libero SoC, e kenya testbench ea mosebedisi files.
Ho tsamaisa testbench ea mosebelisi, beha motso oa moralo ho Core16550 instantiation ho Libero SoC Design Hierarchy pane ebe o tobetsa letšoao la Simulation fensetereng ea SoC Design Flow. Sena se hohela ModelSim® mme e tsamaisa papiso ka bo eona.
Synthesis ho Libero SoC (Botsa Potso)
Tobetsa letšoao la Synthesis ho Libero SoC. Ho hlaha fensetere ea Synthesis. Morero oa Synplify®. Beha Synplify ho sebelisa maemo a Verilog 2001 haeba Verilog e ntse e sebelisoa. Ho tsamaisa Synthesis, tobetsa konopo ea Run.
Sebaka-le-Tsela ho Libero SoC (Botsa Potso)
Ho beha tsela ea moralo ka nepo le ho tsamaisa Synthesis, tobetsa konopo ea Layout ho Libero SoC 'me u kope Moqapi. Core16550 ha e hloke litlhophiso tse khethehileng tsa sebaka-le-tsela.
Core16550 (Botsa potso)
Karolo ena e fana ka tlhahisoleseling mabapi le liparamente tse sebelisitsoeng motheong ona.
Liparamente (Botsa Potso)
Core16550 ha e tšehetse mekhahlelo efe kapa efe ea boemo bo holimo.
Core Interfaces (Botsa Potso)
Karolo ena e fana ka kakaretso ea tlhahiso le tlhahiso.
Tlhaloso ea Letšoao la I/O (Botsa Potso)
Lintlha tse latelang li thathamisa litlhaloso tsa Core16550 I/O.
| Lebitso | Mofuta | Polarity | Tlhaloso |
| PRESETN | Kenyeletso | Tlase | Master reset |
| PCLK | Kenyeletso | - | Sesupa-nako
PCLK e arotsoe ke boleng ba li-register tsa Divisor. Joale phello e aroloa ka 16 ho hlahisa sekhahla sa baud. Letšoao la sephetho ke lets'oao la BAUDOUT. Moeli o phahamang oa phini ena o sebelisetsoa ho strobe matshwao ohle a ho kenya le a tlhahiso. |
| HLALELE | Kenyeletso | Phahameng | APB ngola/bala thusa, e sebetsang-holimo.
Ha HIGH, data e ngotsoe sebakeng se boletsoeng sa aterese. Ha LOW, data e baloa ho tsoa sebakeng se boletsoeng sa aterese. |
| PADDR[4:0] | Kenyeletso | - | Aterese ea APB
Bese ena e fana ka sehokelo bakeng sa CPU ho aterese ea ngoliso ea Core16550 ho baloa kapa ho ngolloa. |
| PSEL | Kenyeletso | Phahameng | APB khetha
Ha sena se le HIGH hammoho le PENABLE, ho bala le ho ngolla Core16550 hoa lumelloa. |
| PWDATA[7:0] | Kenyeletso | - | Bese e kenyang data
Lintlha tse ka beseng ena li tla ngoloa ho rejisetara e ngolisitsoeng nakong ea nako ea ho ngola. |
| KOTLO | Kenyeletso | Phahameng | APB e nolofalletsa
Ha sena se le HIGH hammoho le PSEL, ho bala le ho ngolla Core16550 hoa khoneha. |
| PRDATA[7:0] | Sephetho | - | Bese ea tlhahiso ea data
Bese ena e na le boleng ba rejisetara e ngolisitsoeng nakong ea potoloho ea ho bala. |
| CTSn | Kenyeletso | Tlase | Hlakileng ho Romela
Lets'oao lena le sebetsang-tlase ke lets'oao le bonts'ang ha sesebelisoa se khomaretsoeng (modem) se se se loketse ho amohela data. Core16550 e fetisetsa tlhahisoleseling ena ho CPU ka ngoliso ea Boemo ba Modem. Rejisetara ena e boetse e bontša hore haeba lets'oao la CTSn le fetohile ho tloha nakong ea ho qetela, rejisetara e ile ea baloa. |
| DSRn | Kenyeletso | Tlase | Boitsebiso bo Loketse
Letšoao lena le sebetsang-tlase ke lets'oao le bonts'ang ha sesebelisoa se khomaretsoeng (modem) se se se loketse ho theha sehokelo le Core16550. Core16550 e fetisetsa tlhahisoleseling ena ho CPU ka ngoliso ea Boemo ba Modem. Rejisetara ena e boetse e bontša hore na lets'oao la DSRn le fetohile ho tloha ha registara e ne e baloa ho qetela. |
| DCDn | Kenyeletso | Tlase | Fumana Moemeli oa Boitsebiso
Lets'oao lena le sebetsang-tlase ke lets'oao le bonts'ang ha sesebediswa se khomaretsoeng (modem) se bone sepalangoang. Core16550 e fetisetsa tlhahisoleseling ena ho CPU leha e le ngoliso ea Boemo ba Modem. Rejisetara ena e boetse e bontša hore na lets'oao la DCDn le fetohile ho tloha nakong ea ho qetela ha rejisetara e baloa. |
| SEBE | Kenyeletso | - | Lintlha tse kenyelelitsoeng ka serial
Lintlha tsena li fetisetsoa ho Core16550. E amahanngoa le phini ea ho kenya ea PCLK. |
| RIN | Kenyeletso | Tlase | Sesupo sa Lesale
Lets'oao lena le sebetsang-tlase ke lets'oao le bonts'ang ha sesebelisoa se hoketsoeng (modem) se utloile lets'oao le llang mohaleng oa mohala. Core16550 e fetisetsa tlhahisoleseling ena ho CPU ka ngoliso ea Boemo ba Modem. Rejisetara ena e boetse e bontša hore na moeli oa RIn o ile oa utloahala neng. |
| MOEA | Sephetho | - | Lintlha tse hlahisoang ke serial
Lintlha tsena li fetisoa ho tsoa ho Core16550. E hokahantsoe le phini ea tlhahiso ea BAUDOUT. |
| RTSn | Sephetho | Tlase | Kopa ho Romela
Letšoao lena le sebetsang le tlaase le sebelisoa ho tsebisa mochine o khomaretsoeng (modem) hore Core16550 e loketse ho romela data. E hlophisitsoe ke CPU ka rejistara ea Taolo ea Modem. |
| Lethathamo la 4-1. Kakaretso ea Letšoao la I/O (tsoela pele) | |||
| Lebitso | Mofuta | Polarity | Tlhaloso |
| DTRn | Sephetho | Tlase | Data Terminal Ready
Letšoao lena le sebetsang le tlaase le tsebisa mochine o khomaretsoeng (modem) hore Core16550 e se e loketse ho theha sehokelo sa puisano. E hlophisitsoe ke CPU ka rejistara ea Taolo ea Modem. |
| OUT1n | Sephetho | Tlase | Sephetho sa 1
Phallo ena e sebetsang-tlase ke lets'oao le hlalosoang ke mosebelisi. CPU e hlophisa lets'oao lena ka rejistara ea Taolo ea Modem mme e behiloe ho boleng bo fapaneng. |
| OUT2n | Sephetho | Tlase | Sephetho sa 2
Letšoao lena le sebetsang-tlase ke lets'oao le hlalosoang ke mosebelisi. E hlophisitsoe ke CPU ka rejistara ea Taolo ea Modem 'me e behiloe ho boleng bo fapaneng. hlophisitsoe. |
| INTR | Sephetho | Phahameng | Khatiso e Letileng
Letšoao lena le phahameng le sebetsang ke lets'oao la tšitiso le tsoang ho Core16550. E hlophisitsoe hore e be mafolofolo liketsahalong tse itseng, e tsebisa CPU hore ketsahalo e joalo e etsahetse, (bakeng sa lintlha tse ling, bona Interrupt Identification Register). Joale CPU e nka khato e nepahetseng. |
| BAUDOUTn | Sephetho | Tlase | Baud out
Ena ke lets'oao la oache e tsoang ho tsoa ho oache e kenang bakeng sa ho hokahanya phallo ea data ho tsoa ho SOUT. |
| RXRDYN | Sephetho | Tlase | Moamoheli o ikemiselitse ho amohela phetiso.
CPU e bonts'oa ke lets'oao lena le sebetsang le tlase hore karolo ea moamoheli ea Core16550 e fumaneha hore data e baloe. |
| TXRDYN | Sephetho | Tlase | Transmitter e ikemiselitse ho fetisa data.
Letšoao lena le sebetsang-tlase le bonts'a CPU hore karolo ea transmitter ea Core16550 e na le sebaka sa ho ngola data bakeng sa phetiso. |
| rxfifo_e se nang letho | Sephetho | Phahameng | Fumana FIFO e se na letho.
Letšoao lena le ea HIGH ha FIFO e amohelang e se na letho. |
| rxfifo_e tletse | Sephetho | Phahameng | Fumana FIFO e tletse.
Letšoao lena le ea Holimo ha FIFO e amohelang e tletse. |
Litšoantšo tsa Nako (Botsa Potso)
Karolo ena e fana ka litšoantšo tsa nako ea mantlha ea taba ena.
Phaello ea ho Ngola Lintlha le Cycle Read Data (Botsa Potso)
Setšoantšo sa 5-1 le Setšoantšo sa 5-2 se bontša potoloho ea ho ngola le ho bala likamano tsa nako ea potoloho e amanang le oache ea tsamaiso ea APB, PCLK.
Ngolisa Ngola (Botsa Potso)
Setšoantšo se latelang se bonts'a Aterese, Khetha 'me u Nolofatse lipontšo li latched 'me li tlameha ho sebetsa pele ho moeli o ntseng o phahama oa PCLK. Ho ngola ho etsahala moeling o nyolohang oa lets'oao la PCLK.
Ngodisa Bala (Botsa Potso)
Setšoantšo se latelang se bonts'a Aterese, Khetha 'me u Nolofatse lipontšo li latched 'me li tlameha ho sebetsa pele ho moeli o ntseng o phahama oa PCLK. Ho bala ho etsahala moeling o nyolohang oa lets'oao la PCLK. 
Bakeng sa lintlha tse ling mabapi le litlhaloso le mefuta ea maqhubu a nako, bona litlhaloso tsa AMBA.
Kamahanyo ya moamohedi (Botsa Potso)
Ha moamoheli a lemoha boemo bo tlase molatsoaneng oa data o kenang, o hokahana le ona. Ka mor'a moeli oa ho qala, UART e emela 1.5 × (bolelele bo tloaelehileng bo tloaelehileng). Sena se etsa hore karolo e 'ngoe le e 'ngoe e latelang e baloe bohareng ba bophara ba eona. Setšoantšo se latelang se bontša mokhoa ona oa ho hokahanya.
Setšoantšo sa 5-3. Kamahanyo ya moamohedi
Ts'ebetso ea Testbench (Botsa Potso)
Ke testbench e le 'ngoe feela e fanoang ka Core16550: Verilog user testbench. Ena ke testbench e bonolo ho e sebelisa e ngotsoeng Verilog. Testbench ena e reretsoe ho fetola bareki.
User Testbench (Botsa Potso)
Setšoantšo se latelang se bontša setšoantšo sa block sa example mosebedisi moralo le testbench.
Setšoantšo sa 6-1. Core16550 User Testbench
Mosebelisi oa testbench o kenyelletsa ex e bonoloample moralo o sebetsang e le sesupo sa basebelisi ba batlang ho kenya tšebetsong meralo ea bona.
The testbench bakeng sa mohlalaample, moralo oa mosebelisi o sebelisa karoloana ea ts'ebetso e lekiloeng sethaleng sa netefatso, bakeng sa lintlha tse ling, bona User Testbench. Ka mohopolo, joalo ka ha ho bonts'itsoe ho Setšoantšo sa 6-1, tlhahiso ea Core16550 e etsisoa ho sebelisoa microcontroller ea boitšoaro le khokahano ea loopback e etsisitsoeng. Bakeng sa mohlalaample, testbench ea mosebelisi e bonts'a phetisetso le ho amoheloa ke yuniti e le 'ngoe ea Core16550, kahoo o ka fumana kutloisiso ea mantlha ea ho sebelisa motheo ona.
Testbench ea mosebelisi e bonts'a ho seta, ho fetisa le ho amohela ts'ebetso ea Core16550. Mosebelisi oa testbench o etsa mehato e latelang:
- Ngolla lirejisete tsa taolo.
- Sheba lintlha tse fumanoeng.
- Bulela phetiso 'me u amohele.
- Bala libuka tsa taolo.
- Fetisetsa le ho amohela baiti e le 'ngoe.
Tšebeliso le Ts'ebetso ea Sesebelisoa (Botsa Potso)
Tafole e latelang e thathamisa lintlha tsa ts'ebeliso ea Core16550 le ts'ebetso. Lethathamo la 7-1. Core16550 Tšebeliso le Ts'ebetso ea PolarFire le PolarFire SoC
| Lintlha tsa Sesebelisoa | Lisebelisoa | RAM | |||
| Lelapa | Sesebelisoa | 4 LUT | DFF | Lintlha tse utloahalang | μSRAM |
| PolarFire® | MPF100T- FCSG325I | 752 | 284 | 753 | 2 |
| PolarFire®SoC | MPFS250TS- FCSG536I | 716 | 284 | 720 | 2 |
| RTG4™ | RT4G150- 1CG1657M | 871 | 351 | 874 | 2 |
| IGLOO® 2 | Setšoantšo sa M2GL050TFB GA896STD | 754 | 271 | 1021 | 2 |
| SmartFusion® 2 | Setšoantšo sa M2S050TFBG A896STD | 754 | 271 | 1021 | 2 |
| SmartFusion® | A2F500M3G- STD | 1163 | 243 | 1406 | 2 |
| IGLOO®/IGLOOE | AGL600- STD/AGLE600 V2 | 1010 | 237 | 1247 | 2 |
| Fusion | AFS600-STD | 1010 | 237 | 1247 | 2 |
| ProASIC® 3/E | A3P600-STD | 1010 | 237 | 1247 | 2 |
| ProASIC Plus® | APA075-STD | 1209 | 233 | 1442 | 2 |
| RTAX-S | RTAX250S- STD | 608 | 229 | 837 | 2 |
| Axcelerator® | AX125-STD | 608 | 229 | 837 | 2 |
Mathata a rarollotsoeng (Botsa Potso)
Tafole e latelang e thathamisa lintlha tsohle tse rarollotsoeng bakeng sa litokollo tse fapaneng tsa Core16550.
Lethathamo la 8-1. Mathata a Rarollotsoeng
| Phetolelo | Liphetoho |
| v3.4 | Core16550 e sebelisa "break" ea "System Verilog" e le lebitso la ngoliso le neng le baka bothata ba phoso ea syntax. Sena se lokisitsoe ka ho nkela lebitso la sehlooho sebaka ka lebitso le leng. E kenyellelitse tšehetso ea lelapa ea PolarFire® |
Nalane ea Tlhahlobo (Botsa Potso)
Nalane ea ntlafatso e hlalosa liphetoho tse kentsoeng tšebetsong tokomaneng. Liphetoho li thathamisitsoe ka ntlafatso, ho qala ka khatiso ea morao-rao.
Tšehetso ea Microchip FPGA
Sehlopha sa lihlahisoa tsa Microchip FPGA se tšehetsa lihlahisoa tsa sona ka lits'ebeletso tse fapaneng tsa tšehetso, ho kenyeletsoa Ts'ebeletso ea Bareki, Setsi sa Ts'ehetso ea Tekheniki ea Bareki, a websebaka, le liofisi tsa thekiso lefatšeng ka bophara. Bareki ba khothaletsoa ho etela lisebelisoa tsa Marang-rang tsa Microchip pele ba ikopanya le tšehetso kaha ho ka etsahala hore ebe lipotso tsa bona li se li arajoa.
Ikopanye le Setsi sa Tšehetso ea Setsebi ka ho website at www.microchip.com/support Bolela nomoro ea Karolo ea Sesebelisoa sa FPGA, khetha mofuta o nepahetseng oa linyeoe, 'me u hlophise moralo files ha u ntse u theha nyeoe ea tšehetso ea tekheniki.
Ikopanye le Tshebeletso ya Bareki bakeng sa tshehetso ya dihlahiswa tseo e seng tsa botekgeniki, jwalo ka ditheko tsa sehlahiswa, dintlafatso tsa sehlahiswa, tlhahisoleseding e ntjhafatsa, boemo ba odara, le tumello.
- Ho tsoa Amerika Leboea, letsetsa 800.262.1060
- Ho tsoa lefats'eng lohle, letsetsa 650.318.4460
- Fax, ho tsoa kae kapa kae lefatšeng, 650.318.8044
Boitsebiso ba Microchip
Matšoao a khoebo
Lebitso la "Microchip" le logo, "M" logo, le mabitso a mang, li-logo, le li-brand ke matshwao a khoebo a ngolisitsoeng le a sa ngolisoang a Microchip Technology Incorporated kapa mekhatlo e amanang le eona le/kapa lithuso tsa United States le/kapa linaheng tse ling ("Microchip). Matshwao a kgwebo”). Tlhahisoleseding e mabapi le Microchip Trademarks e ka fumanoa ho https://www.microchip.com/en-us/about/legal-information/microchip-trademarks
ISBN:
Tsebiso ea Molao
- Khatiso ena le lintlha tse mona li ka sebelisoa feela le lihlahisoa tsa Microchip, ho kenyeletsoa ho rala, ho leka, le ho kopanya lihlahisoa tsa Microchip le kopo ea hau. Tšebeliso ea lintlha tsena
ka tsela efe kapa efe e tlola dipehelo tsena. Lintlha mabapi le lits'ebetso tsa sesebelisoa li fanoe molemong oa hau feela 'me li ka nkeloa sebaka ke liapdeite. Ke boikarabello ba hau ho netefatsa hore kopo ea hau e kopana le litlhaloso tsa hau. Ikopanye le ofisi ea thekiso ea Microchip ea lehae bakeng sa tšehetso e eketsehileng kapa, fumana tšehetso e eketsehileng ho www.microchip.com/en-us/support/design-help/client-support-services - TSEBISO ENA E FUMANA KE MICROCHIP "JOALOKAHA E LE". MICROCHIP HA E ETSE LITLHAKISO KAPA LITIISETSO TSA MOFUTA OFE kapa O fe Ebang E BONAHALA KAPA E BONAHALA, E NGOLOA KAPA MOLOMO, MOLAO KAPA HO SE EMONG, E Amanang le LITSEBISO HO kenyeletsoa EMPA E SA FUMANE LE TIISETSO EFE KAPA EFE E FUMANEHLENG LE TLAMELO. BAKENG SA MORERO O KHETHEHILENG, KAPA LITIISETSO TSE AMANG LE MAEMO A OONA, BOLEMO, KAPA KETSAHALO EA OONA.
- HA HO LE TSATSAHALO, MICROCHIP E TLA BA MOTHO OA MOLATO BAKENG SA LITABA LIFE, TSE KHETHEHILENG, TSA KOTSI, TSATSAHALO, KAPA TAHLEHELO E LATELANG, TŠENYEHO, LITŠEnyehelo, KAPA LITJEHO TSA MOFUTA OFE O TLANG LE LITSEBISO KAPA TŠEBELETSO EA LONA, LE HO KA ETSAHALA KETSAHALO E ETSANG. TSE KA E KA ETSAHANG KAPA MESEKO E BONAHALA. HO FIHLELA KA HO FETISISA HO DUMELLA KE MOLAO, BOIKARABELO KAOFELA BA MICROCHIP HO LIKELETSO KAOFELA KA TSELA EFE KAPA E MABAPI LE TSEBISO KAPA TŠEBELETSO EA YONA E KE KE E FEELA BOLIMO OA LITEFO, HA E LE TSE LE FELA, TSEO U LI LEFILENG KA THOTLHALA BAKENG SA MICROCHIP.
- Tšebeliso ea lisebelisoa tsa Microchip ts'ehetso ea bophelo le/kapa lits'ebetso tsa ts'ireletso e kotsing ea moreki, 'me moreki o lumela ho sireletsa, ho qosa le ho boloka Microchip e se nang kotsi ho tsoa lits'enyehelo tsohle, likopo, lisutu, kapa litšenyehelo tse bakoang ke ts'ebeliso e joalo. Ha ho lilaesense tse fetisoang, ka mokhoa o hlakileng kapa ka tsela e 'ngoe, tlasa litokelo life kapa life tsa thepa ea mahlale a Microchip ntle le ha ho boletsoe ka tsela e ngoe.
Karolo ea Tšireletso ea Khoutu ea Lisebelisoa tsa Microchip
Ela hloko lintlha tse latelang tsa ts'ireletso ea khoutu lihlahisoa tsa Microchip:
- Lihlahisoa tsa Microchip li kopana le litlhaloso tse fumanehang ho Microchip Data Sheet ea bona.
- Microchip e lumela hore lihlahisoa tsa eona li sireletsehile ha li sebelisoa ka mokhoa o reriloeng, ka har'a litlhaloso tsa ts'ebetso, le tlas'a maemo a tloaelehileng.
- E boloka boleng ba Microchip mme ka mabifi e sireletsa litokelo tsa eona tsa thepa ea mahlale. Boiteko ba ho tlola likarolo tsa ts'ireletso ea khoutu ea lihlahisoa tsa Microchip bo thibetsoe ka thata mme bo ka tlola Digital Millennium Copyright Act.
- Ha ho Microchip kapa moetsi ofe kapa ofe oa semiconductor ea ka netefatsang ts'ireletso ea khoutu ea eona. Tšireletso ea khoutu ha e bolele hore re tiisa hore sehlahisoa "se ke ke sa robeha". Tšireletso ea khoutu e lula e fetoha. Microchip e ikemiselitse ho tsoela pele ho ntlafatsa likarolo tsa ts'ireletso ea khoutu ea lihlahisoa tsa rona.
Bukana ea Mosebelisi
© 2025 Microchip Technology Inc. le makalana a eona
Litokomane / Lisebelisoa
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MICROCHIP Core16550 Universal Asynchronous Receiver Transmitter [pdf] Bukana ea Mosebelisi v3.4, v3.3, Core16550 Universal Asynchronous Receiver Transmitter, Core16550, Universal Asynchronous Receiver Transmitter, Asynchronous Receiver Transmitter, Receiver Transmitter, Transmitter |