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| 型号： | MA17503 |
| 厂商： | Dynex Semiconductor Ltd. |
| 英文描述： | Radiation Hard MIL-STD-1750A Interrupt Unit |
| 中文描述： | 辐射硬的MIL - STD - 1750A中断组 |
| 文件页数： | 1/34页 |
| 文件大小： | 373K |
| 代理商： | MA17503 |
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MA17503
1/34
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.
FEATURES
I
Mil-Std-1750A Instruction Set Architecture
I
Full Performance over Military Temperature Range (-55
°
C
to +125
°
C)
I
Radiation Hard CMOS/SOS Technology
I
Interrupt Handler
9 User Interrupt Inputs
Pending Interrupt Register
Interrupt Mask Register
Interrupt Priority Encoder
I
Fault Handler
8 User Faults Inputs
Fault Register
I
Timers
Timer A
Timer B
I
Trigger-Go
I
DMA Interface
I
Interface Discretes
Normal Power-Up
Start-Up ROM Enable
Configuration Word Enable
I
Implements 26 MIL-STD-1750A Specified l/O Commands
I
MAS281 Integrated Built-ln Self Test
I
TTL Compatible System Interface
BLOCK DIAGRAM
Radiation Hard MIL-STD-1750A Interrupt Unit
Replaces June 1999 version, DS3566-4.0
DS3566-5.0 January 2000
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