Abstract: A Page Address Look-up Range RAM is disclosed which allows for individual comparisons to be made on a number of consecutive addresses. The upper bits of the bus address 410 (often representing a “page”) are compared against one or more reference registers 430-437 to yield one or more “match_high”s. The lower bits of the same bus address 420 are used to look-up the value of “match_low” in a Page Look-Up RAM 440, the bit of interest corresponding to the particular “match-high” reference register i.e. 430. If both the “match_high” and “match_low” events are true, or=1, then the bus address has matched and should cause the event, otherwise not. The most cost effective implementations will have a Look-up RAM 440 with a width of a multiple of 8. This will allow comparison of the bus address against a multiple of individual pages.