Radiation Hard MIL-STD-1750A Interrupt Unit - Dynex
Description
MA17503 MA17503
Radiation Hard MIL-STD-1750A Interrupt Unit
Replaces June 1999 version, DS3566-4.
0 DS3566-5.
0 January 2000
The MA17503 Interrupt Unit is a component of the MAS281 chip set.
Other chips in the set include MA17501 Execution Unit and the MA17502 Control Unit.
Also available is the peripheral MA31751 Memory Management/Block Protection Unit.
The lnterrupt Unit, in conjunction with these additional chips, implements the full MIL-STD-1750A Instruction Set Architecture.
The MA17503 - consisting of the Pending Interrupt Register, Mask Register, Interrupt Priority Encoder, Fault Register, Timer A, Timer B, Trigger-Go Counter, Bus Fault Timer, and DMA interface - handles all interrupt fault, and DMA interfacing, in addition to providing all three hardware timers.
The Interrupt Unit also implements 26 of the MIL-STD-1750A specified l/O commands.
Table 1 provides brief signal definitions.
The MA17503 is offered in dual-in-line, flatpack or leadless chip carrier packaging.
Screening and packaging options are described at the end of this 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 Interrupt Handler • 9 User Interrupt Inputs • Pending Interrupt Register • Interrupt Mask Register • Interrupt Priority Encoder s Fault Handler • 8 User Faults Inputs • Fault Register s Timers • Timer A • Timer B s Trigger-Go s DMA Interface s Interface Discretes • Normal Power-Up • Start-Up ROM Enable • Configuration Word Enable s Implements 26 MIL-STD-1750A Specified l/O Commands s MAS281 Integrated Built-ln Self Test s TTL Compatible System Interface
1/34
MA17503
1.
0 SYSTEM CONSIDERATIONS
The MA17503 Interrupt Unit (IU) is a component of the GPS MAS281 chip set.
This chip set implements the full MIL-STD1750A instruction set architecture.
Other chips in the set include the MA17501 Execution Unit (EU) and MA17502 Control Unit (CU).
Also avail...
Similar Datasheet
