CN102750253A - Centum form factor pluggable (CFP) optical module and management data input/output (MDIO) interface communication method thereof - Google Patents
Centum form factor pluggable (CFP) optical module and management data input/output (MDIO) interface communication method thereof Download PDFInfo
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- CN102750253A CN102750253A CN2012101834815A CN201210183481A CN102750253A CN 102750253 A CN102750253 A CN 102750253A CN 2012101834815 A CN2012101834815 A CN 2012101834815A CN 201210183481 A CN201210183481 A CN 201210183481A CN 102750253 A CN102750253 A CN 102750253A
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Abstract
The invention discloses a centum form factor pluggable (CFP) optical module and a management data input/output (MDIO) interface communication method thereof. The CFP optical module is provided with a field programmable gate array (FPGA) and a micro-controller unit (MCU), a serial periphery interface (SPI) communication bus is arranged between the FPGA and the MCU, the FPGA and the MCU are interactively communicated with each other through the SPI communication bus, an address wire is arranged between a system board and the FPGA, the FPGA receives an MDIO data stream transmitted by the system board, converts the MDIO data stream into an SPI data stream and transmits the SPI data stream to the MCU, and the MCU performs corresponding processing according to received data, so that once normal communication between the CFP optical module and the system board is finished.
Description
Technical field
Relevant a kind of CFP (the Centum Form Factor Pluggable of the present invention; 100G can plug encapsulation) optical module; Be meant especially a kind of can and system board between directly carry out the CFP optical module of communication and the MDIO method for interface communication of this module through MDIO (Management Data Input/Output, management data input and output) bus.
Background technology
At present; The interface of CFP MSA agreement regulation CFP optical module and system board communication adopts the MDIO interface; And the control section of CFP optical module selects for use MCU (Micro-Controller Unit, micro-control unit) to realize mostly; But have no MCU to contain MDIO at present, so can't utilize existing MCU to realize that the MDIO interface on CFP optical module and the system board directly carries out communication separately from interface.
Summary of the invention
In view of this, fundamental purpose of the present invention be to provide a kind of realize and system board between directly carry out the CFP optical module of communication and the MDIO method for interface communication of this module through the MDIO bus.
For achieving the above object, the present invention provides a kind of CFP optical module, wherein is provided with FPGA and MCU; Be provided with communication bus between FPGA and the MCU; And carry out interactive communicate through communication bus, and carry out interactive communicate through the MDIO bus between FPGA and the system board, be provided with address wire between system board and the FPGA.
Said communication bus between said FPGA and the MCU is a spi bus; Said FPGA receives the MDIO data stream that said system board transmits; Convert the SPI stream data transmission to and give said MCU; Through said FPGA the MDIO interface conversion is realized the function of MDIO from interface for the SPI interface, accomplish between CFP optical module and the said system board through MDIO bus normal communication.
The present invention also provides a kind of CFP optical module MDIO method for interface communication, and this method is drawn together:
FPGA and MCU are set in the CFP optical module, carry out interactive communicate through communication bus between FPGA and the MCU, carry out interactive communicate through the MDIO bus between this FPGA and the system board, be provided with address wire between system board and the FPGA.
Communication bus is a spi bus; The MDIO data stream that said FPGA receiving system plate transmits; Convert the SPI stream data transmission to and give MCU, MCU makes corresponding processing according to the data that receive; Through said FPGA the MDIO interface conversion is realized the function of MDIO from interface for the SPI interface, thereby accomplish a normal communication between CFP optical module and the said system board.
The present invention utilizes the mode of FPGA+MCU to realize the function of MDIO from interface in the CFP optical module; FPGA links to each other with the microprocessor unit MCU of system board and CFP optical module respectively through interface; Realization is to the parsing of MDIO EBI, thereby reaches between CFP optical module and the system board purpose through MDIO bus normal communication.
Description of drawings
The theory diagram of Fig. 1 for carrying out communication through the MDIO bus between CFP optical module of the present invention and the system board;
The embodiment schematic diagram of Fig. 2 for carrying out communication through the MDIO bus between CFP optical module of the present invention and the system board.
Embodiment
Below in conjunction with accompanying drawing and instantiation the present invention is described further so that those skilled in the art can better understand the present invention and implementing, but the embodiment that lifts not conduct to qualification of the present invention.
As shown in Figure 1; Be provided with FPGA (Field-Programmable Gate Array, field programmable gate array) and MCU in the CFP optical module of the present invention, be provided with communication bus between FPGA and the MCU; And carry out interactive communicate through communication bus; Carry out interactive communicate through the MDIO bus between FPGA and the system board, be provided with address wire between system board and the FPGA, realize thus carrying out normal communication through the MDIO bus between CFP optical module and the system board.As shown in Figure 2; Communication bus among the present invention between FPGA and the MCU is SPI (Serial Peripheral Interface; Serial Peripheral Interface (SPI)) bus; Through FPGA the MDIO interface conversion is realized the function of MDIO from interface for the SPI interface, reach the purpose of passing through MDIO bus normal communication between CFP optical module and the system board.
The MDIO method for interface communication of CFP optical module of the present invention is described below:
FPGA and MCU are set in the CFP optical module, carry out interactive communicate through communication bus between FPGA and the MCU, this communication bus is a spi bus; Wherein, The MDIO data stream that FPGA receiving system plate transmits converts the SPI stream data transmission to and gives MCU, and MCU is according to the data that receive; Make corresponding processing, thereby accomplish a normal communication between CFP optical module and the system board.
The present invention utilizes the mode of FPGA+MCU to realize the function of MDIO from interface in the CFP optical module; FPGA links to each other with the microprocessor unit MCU of system board and CFP optical module respectively through interface; Realization is to the parsing of MDIO EBI, thereby reaches between CFP optical module and the system board purpose through MDIO bus normal communication.
The above embodiment is the preferred embodiment that proves absolutely that the present invention lifts, and protection scope of the present invention is not limited thereto.Being equal to that the technician in present technique field is done on basis of the present invention substitutes or conversion, all within protection scope of the present invention.
Claims (4)
1. a CFP optical module is characterized in that, wherein is provided with FPGA and MCU; Be provided with communication bus between FPGA and the MCU; And carry out interactive communicate through communication bus, and carry out interactive communicate through the MDIO bus between FPGA and the system board, be provided with address wire between system board and the FPGA.
2. CFP optical module as claimed in claim 1; It is characterized in that; Said communication bus between said FPGA and the MCU is a spi bus, and said FPGA receives the MDIO data stream that said system board transmits, and converts the SPI stream data transmission to and gives said MCU; Through said FPGA the MDIO interface conversion is realized the function of MDIO from interface for the SPI interface, accomplish between CFP optical module and the said system board through MDIO bus normal communication.
3. CFP optical module MDIO method for interface communication is characterized in that this method comprises:
FPGA and MCU are set in the CFP optical module, carry out interactive communicate through communication bus between FPGA and the MCU, carry out interactive communicate through the MDIO bus between this FPGA and the system board, be provided with address wire between system board and the FPGA.
4. CFP optical module MDIO method for interface communication as claimed in claim 3 is characterized in that said communication bus is a spi bus; The MDIO data stream that said FPGA receiving system plate transmits; Convert the SPI stream data transmission to and give MCU, MCU makes corresponding processing according to the data that receive; Through said FPGA the MDIO interface conversion is realized the function of MDIO from interface for the SPI interface, thereby accomplish a normal communication between CFP optical module and the said system board.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012101834815A CN102750253A (en) | 2012-06-06 | 2012-06-06 | Centum form factor pluggable (CFP) optical module and management data input/output (MDIO) interface communication method thereof |
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| Application Number | Priority Date | Filing Date | Title |
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| CN2012101834815A CN102750253A (en) | 2012-06-06 | 2012-06-06 | Centum form factor pluggable (CFP) optical module and management data input/output (MDIO) interface communication method thereof |
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| CN102750253A true CN102750253A (en) | 2012-10-24 |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN103226533A (en) * | 2013-03-29 | 2013-07-31 | 福建星网锐捷通讯股份有限公司 | Device for extending MDIO (management data input/output) interface through parallel buses and realizing method thereof |
| CN103630987A (en) * | 2013-11-20 | 2014-03-12 | 深圳市易飞扬通信技术有限公司 | CFP (centum form factor pluggable) optical module and MDIO (management data input/output) interface circuit thereof |
| CN103746717A (en) * | 2013-12-25 | 2014-04-23 | 惠州汇聚电线制品有限公司 | CFP connector and CFP transmission architecture |
| CN104407279A (en) * | 2014-10-28 | 2015-03-11 | 深圳市芯海科技有限公司 | Code type data, apparatus and test method for automatically testing chip MDIO bus protocol |
| CN110149149A (en) * | 2019-05-14 | 2019-08-20 | 北京小鸟科技股份有限公司 | Communication module and KVM switching equipment, system for KVM switching equipment |
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| US20110135312A1 (en) * | 2006-10-13 | 2011-06-09 | Siraj Nour El-Ahmadi | 40g/100g optical transceivers with integrated framing and forward error correction |
| CN201886466U (en) * | 2010-12-15 | 2011-06-29 | 武汉电信器件有限公司 | Seamless transition module from MDIO (management data input output) bus slave computer to SPI (serial peripheral interface) bus |
| CN102231652A (en) * | 2011-07-04 | 2011-11-02 | 武汉电信器件有限公司 | C form-factor pluggable (CFP) optical transceiver with interleaver |
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| US20110135312A1 (en) * | 2006-10-13 | 2011-06-09 | Siraj Nour El-Ahmadi | 40g/100g optical transceivers with integrated framing and forward error correction |
| CN201886466U (en) * | 2010-12-15 | 2011-06-29 | 武汉电信器件有限公司 | Seamless transition module from MDIO (management data input output) bus slave computer to SPI (serial peripheral interface) bus |
| CN102231652A (en) * | 2011-07-04 | 2011-11-02 | 武汉电信器件有限公司 | C form-factor pluggable (CFP) optical transceiver with interleaver |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103226533A (en) * | 2013-03-29 | 2013-07-31 | 福建星网锐捷通讯股份有限公司 | Device for extending MDIO (management data input/output) interface through parallel buses and realizing method thereof |
| CN103226533B (en) * | 2013-03-29 | 2016-08-24 | 福建星网锐捷通讯股份有限公司 | A kind of device by parallel bus extension MDIO interface and its implementation |
| CN103630987A (en) * | 2013-11-20 | 2014-03-12 | 深圳市易飞扬通信技术有限公司 | CFP (centum form factor pluggable) optical module and MDIO (management data input/output) interface circuit thereof |
| CN103630987B (en) * | 2013-11-20 | 2015-11-18 | 深圳市易飞扬通信技术有限公司 | CFP optical module |
| CN103746717A (en) * | 2013-12-25 | 2014-04-23 | 惠州汇聚电线制品有限公司 | CFP connector and CFP transmission architecture |
| CN104407279A (en) * | 2014-10-28 | 2015-03-11 | 深圳市芯海科技有限公司 | Code type data, apparatus and test method for automatically testing chip MDIO bus protocol |
| CN110149149A (en) * | 2019-05-14 | 2019-08-20 | 北京小鸟科技股份有限公司 | Communication module and KVM switching equipment, system for KVM switching equipment |
| CN110149149B (en) * | 2019-05-14 | 2024-04-30 | 北京小鸟科技股份有限公司 | Communication module for KVM switch device, KVM switch device and system |
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Application publication date: 20121024 |