Radiation Hard MIL-STD-1750A Execution unit - Dynex
Description
MA17501 MA17501
Radiation Hard MIL-STD-1750A Execution unit
Replaces March 1997 version, DS4548 - 2.
3 DS4548 - 3.
2 January 2000
The MA17501 Execution Unit is a component of the Dynex Semiconductor MAS281 chip set.
Other chips in the set include the MA17502 Control Unit and the MA17503 lnterrupt Unit.
Also available is the peripheral MA31751 Memory Management Unit/Block Protection Unit.
These chips in conjunction implement the full MlL-STD-1750A lnstruction Set.
The MA17501 - consisting of a full function 16-bit ALU, 24 x 16-bit dual-port RAM register file, 32-bit barrel shifter, 4 x 24bit parallel multiplier, synchronisation clock generation logic, and microcode decode logic - provides all computational, logical, and synchronisation functions for the chip set.
Table 1 provides brief signal definitions.
The MA17501 is offered in several package styles including; dual-in-line, flatpack and leadless chip carrier.
Full packaging information is given at the end of the document.
BLOCK DIAGRAM
FEATURES
s MIL-STD-1750A Instruction Set Architecture s Full Performance over Military Temperature Range (-55°C to +125°C) s Radiation Hard CMOS/SOS Technology s 16-Bit Bidirectional Address/Data Bus s 16-Bit Full Function Registered ALU s 32-Bit Barrel Shifter s 24 x 16-Bit Dual-Port RAM File • 16 User Accessible General Purpose Registers • 8 Microcode Accessible Registers s 4 x 24-Bit Parallel Multiplier • 48-Bit Accumulator • 16-Bit x 16-Bit Multiply in 4 Machine Cycles s Instruction Pre-Fetch s MAS281 Integrated Built-in Self Test s TTL Compatible System Interface
1.
0 SYSTEM CONSIDERATIONS
The MA17501 Execution Unit (EU) is a component of the Dynex Semiconductor MAS281 chip set.
This chip set implements the full MlL-STD-1750A instruction set architecture.
The other chips in the set are the MA17502 Control Unit (CU) and the MA17503 Interrupt Unit (IU).
Also available is the peripheral MA31751 Memory Management Unit/Block Protection Unit (MMU(BPU)).
Figure 1 depicts the relati...
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