1. In a paged memory management unit (PMMU) adapted to selectively access a plurality of pointer tables and page tables stored in a memory to translate a selected logical address into a corresponding physical address by first combining a first portion of said logical address and a first table pointer to access a first one of said pointer tables to obtain therefrom a page table pointer to a selected one of said page tables and then combining a second portion of said logical address and said page table pointer to access said selected page table to obtain therefrom said physical address, the improvement wherein said logical address includes an address space selector portion, said PMMU being selectively enabled to initially combine said first table pointer and said address space selector portion of said logical address to access a second one of said pointer tables to obtain therefrom a second table pointer and then combine said first portion of said logical address and said second table pointer to access said first one of said pointer tables to obtain therefrom said page table pointer.