hard disk drive 126 tape drive 128 and cd rom 130 as noted by dotted line 132 in fig1 denoting optional inclusion as another example data processing system 100 may be a stand alone system configured to be bootable without relying on some type of network communication interface as a further example data processing system 100 may be a personal digital assistant pda device which is configured with rom and or flash rom in order to provide non volatile memory for storing operating system files and or user generated data the depicted example in fig1 and above described examples are not meant to imply architectural limitations as to the type of data processing system in which the present invention may be used with reference now to fig2 a functional block diagram of a multi module chip is depicted in accordance with a preferred embodiment of the present invention mcm 200 in this example contains a cavity down package 202 which contains a semiconductor device such as an asic 204 in this example in addition memories 206 208 and 210 are attached to package 202 in this example these memories are placed within the package through openings in the encapsulation material to be connected to various pads or conductors forming memory bus 212 in this manner asic 204 may access memories 206 208 or 210 further memory bus 212 includes a connection within package 202 to the pcb to allow other devices external to.