An embodiment of the present invention is a technique to control memory access. An address pre-swizzle circuit conditions address bits provided by a processor according to access control signals. A data steering circuit connects to N sub-channels of memory to dynamically steer data for a memory access type including tiled and untiled memory accesses according to the access control signals, the conditioned address bits, and sub-channel identifiers associated with the N sub-channels. The tiled memory access includes horizontally and vertically tiled memory accesses. An address post-swizzle circuit generates sub-channel address bits to the N sub-channels using the conditioned address bits and according to the access control signals and the sub-channel identifiers.