LPC2214: D16-D31 pins available as user I/O?
2005-09-25 by skymab
Hi, are the Pins D16 - D31 available as user I/O while my external memory interface is enabled as configured as 16Bit interface?
Thread
LPC2214: D16-D31 pins available as user I/O?
Re: [lpc2000] LPC2214: D16-D31 pins available as user I/O?
2005-09-25 by Richard Duits
Yes, you can use D16 - D31 as GPIO if you use only 16 bits as data bus. You can also use some address pins as GPIO if you do not need a large external address space. All this is explained in Chapter 8: PIN CONNECT BLOCK of the User Manual (http://www.semiconductors.philips.com/acrobat/usermanauls/UM_LPC2114_2124_2212_2214_2.pdf). The data and address bus are configured with the PINSEL2 register. Richard Duits skymab wrote:
Show quoted textHide quoted text
> Hi, > > are the Pins D16 - D31 available as user I/O while my external memory > interface is enabled as configured as 16Bit interface? > > > > > > ------------------------------------------------------------------------ > YAHOO! GROUPS LINKS > > * Visit your group "lpc2000 > <http://groups.yahoo.com/group/lpc2000>" on the web. > > * To unsubscribe from this group, send an email to: > lpc2000-unsubscribe@yahoogroups.com > <mailto:lpc2000-unsubscribe@yahoogroups.com?subject=Unsubscribe> > > * Your use of Yahoo! Groups is subject to the Yahoo! Terms of > Service <http://docs.yahoo.com/info/terms/>. > > > ------------------------------------------------------------------------ >