questions abut slave fifo

	achy posted on 22 Jun 2011 12:14 AM PST Top Contributor 31 Forum Posts

1.I try to configure endpoint 2 to be 1024 bytes,quad-buffer,bulk in mode.but after I writing more than 4096 bytes into the fifo , there are only 2048 bytes.so how can I take advantage of the whole 4KB fifo in bulk transfer with only one endpoint?

2,Can the auto in slave fifo be configured to be intrerrupt trannsfer mode?

3,On running the FIFORESET,what operation would happen to the CY7C68013? Will the FIFO are filled with 0? Or only some registers and status of the chip have been changed?How much time would this take?

Re: questions abut slave fifo

	aasi posted on 22 Jun 2011 01:01 AM PST Cypress Employee 1090 Forum Posts

1. In high speed bulk endpoint can have a max size of 512 byte. Do not configure it for 1024 bytes.

2. Yep. You can configure it as interrupt endpoint as well.

3. It brings the FIFO into a valid state. The register description in the TRM should make the purpose and how each bit works very clear.

Regards,

Anand

ALL CONTENT AND MATERIALS ON THIS SITE ARE PROVIDED "AS IS". CYPRESS SEMICONDUCTOR AND ITS RESPECTIVE SUPPLIERS MAKE NO REPRESENTATIONS ABOUT THE SUITABILITY OF THESE MATERIALS FOR ANY PURPOSE AND DISCLAIM ALL WARRANTIES AND CONDITIONS WITH REGARD TO THESE MATERIALS, INCLUDING BUT NOT LIMITED TO, ALL IMPLIED WARRANTIES AND CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE, TITLE AND NON-INFRINGEMENT OF ANY THIRD PARTY INTELLECTUAL PROPERTY RIGHT. NO LICENSE, EITHER EXPRESS OR IMPLIED, BY ESTOPPEL OR OTHERWISE, IS GRANTED BY CYPRESS SEMICONDUCTOR. USE OF THE INFORMATION ON THIS SITE MAY REQUIRE A LICENSE FROM A THIRD PARTY, OR A LICENSE FROM CYPRESS SEMICONDUCTOR.

Content on this site may contain or be subject to specific guidelines or limitations on use. All postings and use of the content on this site are subject to the Terms and Conditions of the site; third parties using this content agree to abide by any limitations or guidelines and to comply with the Terms and Conditions of this site. Cypress Semiconductor and its suppliers reserve the right to make corrections, deletions, modifications, enhancements, improvements and other changes to the content and materials, its products, programs and services at any time or to move or discontinue any content, products, programs, or services without notice.

Cypress Perform

questions abut slave fifo

Re: questions abut slave fifo