Abstract: A data type management unit. The data type management unit is configured to include a rules module which includes at least one identification standard paired with an associated code type, an interface module configured to receive a code signal, and an analysis module coupled to the interface module and to the rules module. Each identification standard includes a comparison rule paired with an associated rejection criteria; the comparison rule of each identification standard includes at least one code pattern representative of the associated code type; and the rejection criteria of each identification standard includes at least one rejection rule. The analysis module is configured to compare the received code signal to each code pattern in each identification standard and to recognize if one or more of the comparison results violates one or more of the rejection rules.

Abstract: A logic device. The logic device includes a control module, a memory management unit, a memory module, and at least one first register. The memory management unit controls flow of software code between the control module and the memory module; the control module programs at least one of the first registers during start-up procedures of the logic device to specify at least one data memory section in the memory module. The memory management unit communicates with the first registers to identify the at least one data memory section, and the memory management unit excludes executable code from storage in the at least one data memory section. After completion of the start-up procedures, the first registers are write protected, thereby preventing subsequent programming of the first registers, and the memory management unit cannot be disabled without shutting down the logic device.