Cypress Perform

Home > Design Support > Cypress Developer CommunityTM > Cypress Forums > USB Controllers > Which pin can be configured as PAx in Slave FIFO mode on 56Pins chip?

Bookmark and Share
Cypress Developer CommunityTM
Forums | Videos | Blogs | Training | Rewards Program | Community Components



Which pin can be configured as PAx in Slave FIFO mode on 56Pins chip?
Moderator:
RSKV

Post Reply
Follow this topic



Which pin can be configured as PAx in Slave FIFO mode on 56Pins chip?

is posted on 11 Nov 2010 10:04 PM PST
Member
2 Forum Posts

I need some GPIO in my design.




Re: Which pin can be configured as PAx in Slave FIFO mode on 56Pins chip?

hms03049 posted on 07 Dec 2010 09:38 PM PST
Member
5 Forum Posts

PA7 to PA0 are all available as GPIO. Look at the code and the hardware design  to be sure they are not being used for something else, pick one that is free.

Use OEA = 0xXX;  where hex value XX sets the pins to 0 for inputs and 1 for outputs as required for the 8 ports
Then use a bit mask to toggle the port you want.

Examples:

   IOA  |= 0x01;        // Sets port PA0 high without changing other PAx ports        
   IOA &= 0x04;      // Sets port PA3 low without chaging other PAx ports






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.

Spec No: None; Sunset Owner: KXP; Secondary Owner: VWA; Sunset Date: 01/01/20