MA31750

MA31750 MA31750 High Performance MIL-STD-1750 Microprocessor Replaces July 1999 version, DS3748-7.0 DS3748-8.0 January 2000 The Dynex Semiconductor MA31750 is a single-chip microprocessor that implements the full MIL-STD-1750A instruction set architecture, or Option 2 of Draft MIL-STD1750B. The processor executes all mandatory instructions and many optional features are also included. Interrupts, fault handling, memory expansion, Console, timers A and B, and their related optional instructions are also supported in full accordance with MIL-STD-1750. The MA31750 offers a considerable performance increase over the existing MAS281. This is achieved by using a 32-bit internal bus structure with a 24 x 24 bit multiplier and 32-bit ALU. Other performance-enhancing features include a 32-bit shift network, a multi-port register file and a dedicated address calculation unit. The MA31750 has on-chip parity generation and checking to enhance system integrity. A comprehensive built-in self-test has also been incorporated, allowing processor functionality to be verified at any time. Console operation is supported through a parallel interface using command/data registers in l/O space. Several discrete output signals are produced to minimise external logic. Control signals are also provided to allow inclusion of the MA31750 into a multiprocessor or DMA system. The processor can directly access 64KWords of memory in full accordance with MIL-STD-1750A. This increases to 1MWord when used wi...