Nios® V/II Embedded Design Suite (EDS)
Support for Embedded Development Tools, Processors (SoCs and Nios® V/II processor), Embedded Development Suites (EDSs), Boot and Configuration, Operating Systems, C and C++
12621 Discussions

64Bit processer access

Altera_Forum
Honored Contributor II
‎04-10-2010 12:34 PM
999 Views

Hi all, 

 

If i have 64 bit slave component then it is possible to accses from NIOS using IOWR_64DIRECT same \for read..? 

 

Thaks in advance 

 

Regards 

DG
0 Kudos

Link Copied

1 Reply
Altera_Forum
Honored Contributor II
‎04-12-2010 06:46 AM
275 Views

The CPU is limited to a 32 bit access, so you'll have to do two 32 bit reads/writes. They will probably be seen as two accesses by your slave, even if it is on a 64 bit bus.

0 Kudos
Copy link
Reply

Community support is provided during standard business hours (Monday to Friday 7AM - 5PM PST). Other contact methods are available here.

Intel does not verify all solutions, including but not limited to any file transfers that may appear in this community. Accordingly, Intel disclaims all express and implied warranties, including without limitation, the implied warranties of merchantability, fitness for a particular purpose, and non-infringement, as well as any warranty arising from course of performance, course of dealing, or usage in trade.

For more complete information about compiler optimizations, see our Optimization Notice.