TW200725284A - Communicating circuit for SPI devices - Google Patents

Communicating circuit for SPI devices

Info

Publication number
TW200725284A
TW200725284A TW094146318A TW94146318A TW200725284A TW 200725284 A TW200725284 A TW 200725284A TW 094146318 A TW094146318 A TW 094146318A TW 94146318 A TW94146318 A TW 94146318A TW 200725284 A TW200725284 A TW 200725284A
Authority
TW
Taiwan
Prior art keywords
communicating circuit
multiplexer
devices
spi
spi devices
Prior art date
Application number
TW094146318A
Other languages
Chinese (zh)
Other versions
TWI304534B (en
Inventor
Heng-Chen Kuo
Original Assignee
Hon Hai Prec Ind Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hon Hai Prec Ind Co Ltd filed Critical Hon Hai Prec Ind Co Ltd
Priority to TW94146318A priority Critical patent/TWI304534B/en
Publication of TW200725284A publication Critical patent/TW200725284A/en
Application granted granted Critical
Publication of TWI304534B publication Critical patent/TWI304534B/en

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  • Multi Processors (AREA)
  • Microcomputers (AREA)
  • Information Transfer Systems (AREA)
  • Small-Scale Networks (AREA)

Abstract

A communicating circuit for SPI devices includes a principal device, a plurality of subordinate devices, a SPI bus and a multiplexer. The subordinate devices communicate with the principal device through the SPI bus. The subordinate devices are connected to the multiplexer and then are connected to the SPI bus. The principal device is connected to select ports of the multiplexer. The principal device controls the subordinate devices through the multiplexer.
TW94146318A 2005-12-23 2005-12-23 Communicating circuit for spi devices TWI304534B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
TW94146318A TWI304534B (en) 2005-12-23 2005-12-23 Communicating circuit for spi devices

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
TW94146318A TWI304534B (en) 2005-12-23 2005-12-23 Communicating circuit for spi devices

Publications (2)

Publication Number Publication Date
TW200725284A true TW200725284A (en) 2007-07-01
TWI304534B TWI304534B (en) 2008-12-21

Family

ID=45070958

Family Applications (1)

Application Number Title Priority Date Filing Date
TW94146318A TWI304534B (en) 2005-12-23 2005-12-23 Communicating circuit for spi devices

Country Status (1)

Country Link
TW (1) TWI304534B (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8122173B2 (en) 2008-04-25 2012-02-21 Novatek Microelectronics Corp. Serial peripheral interface (SPI) circuit having driving circuit with data input and output common pin and display using the same
TWI417728B (en) * 2008-02-15 2013-12-01 Hon Hai Prec Ind Co Ltd Serial peripheral interface communication circuit

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI406135B (en) * 2010-03-09 2013-08-21 Nuvoton Technology Corp Data transmission systems and programmable serial peripheral interface controller

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
TWI417728B (en) * 2008-02-15 2013-12-01 Hon Hai Prec Ind Co Ltd Serial peripheral interface communication circuit
US8122173B2 (en) 2008-04-25 2012-02-21 Novatek Microelectronics Corp. Serial peripheral interface (SPI) circuit having driving circuit with data input and output common pin and display using the same

Also Published As

Publication number Publication date
TWI304534B (en) 2008-12-21

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Legal Events

Date Code Title Description
MM4A Annulment or lapse of patent due to non-payment of fees