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.
FEATURES
■ Mil-Std-1750A Instruction Set Architecture
■ Full Performance over Military Temperature Range (-55°C to +125°C)
■ Radiation Hard CMOS/SOS Technology
■ Interrupt Handler
• 9 User Interrupt Inputs
• Pending Interrupt Register
• Interrupt Mask Register
• Interrupt Priority Encoder
■ Fault Handler
• 8 User Faults Inputs
• Fault Register
■ Timers
• Timer A
• Timer B
■ Trigger-Go
■ DMA Interface
■ Interface Discretes
• Normal Power-Up
• Start-Up ROM Enable
• Configuration Word Enable
■ Implements 26 MIL-STD-1750A Specified l/O Commands
■ MAS281 Integrated Built-ln Self Test
■ TTL Compatible System Interface