This reports the amount of memory available on the processor card, in bytes, for this board, applicable to 6500 platforms. This is the per-board, 6500-platform equivalent of cdx6500NMNPSmemEprom, which was scoped to 6520 platforms, giving an admin managing a mixed fleet of 6500 and 6520 nodes the corresponding memory-headroom figure regardless of which platform variant a given node is. For example, an admin scripting a single monitoring check across both 6500 and 6520 nodes would need to poll this object on 6500 platforms and cdx6500NMNPSmemEprom on 6520 platforms to get the equivalent information from each.