LPC43x0FBD144 - How do I connect SD/MMC Write-Protect ?

[lpcware]

Content originally posted in LPCWare by Pacman on Sun Oct 14 14:16:17 MST 2012
I'm currently routing a board using the LPC4330FBD144 (eg. LQFP144 package).
I've almost finished connecting the SD card by now, but it seems there's no SD_WP pin on the LQFP144 version.

Do I just pick any GPIO pin to look at the WP pin ?
How will the controller handle a 'missing' SD_WP pin; is there a way that I can make sure it doesn't write when it's not allowed to ?


Love
Jens

[lpcware]

Content originally posted in LPCWare by Pacman on Tue Nov 20 22:31:49 MST 2012
Thank you for your reply! -This is highly appreciated! :)

[lpcware]

Content originally posted in LPCWare by Jg on Mon Nov 12 08:09:41 MST 2012
The controller only captures the SD_WP pin state to a register. Software should always interpret this signal.

You can pick any GPIO pin to look at this signal and let the software check it.