1. A method, comprising: accessing, via a first device, a first set of registers of a second device directly accessible by the first device via a first address map; accessing a second set of registers of the second device directly accessible by a pattern-recognition processor of the second device via a second address map; and accessing, via the second device, a second set of registers of the second device indirectly accessible by the first device via the first set of registers, wherein the first device comprises a host computing device separate from the second device and configured to access operational or configuration information of the second device from the second set of registers via the first set of registers, wherein the first address map includes physical addresses for the first set of registers and does not include physical addresses for the second set of registers, wherein the second address map includes physical addresses for the first set of registers and the second set of registers.