Intel 8259A IP
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Intel 8259A Functional Equivalent Programmable Interrupt Controller
- The DB8259S Programmable Interrupt Controller core is a full function equivalent to the Intel 8259A / Intersil 82C59A / NEC uPD8259A devices.
- The DB8259S Interrupt Controller manages up to eight vectored priority interrupts for a microprocessor. Using multiple instantiations of the DB8259S core and programming it to cascade mode enables up to sixty-four vectored priority interrupts.
- More than sixty four vectored interrupts can be accomplished by programming the DB8259S core to Poll Command Mode. Interrupt sources may be either edge or level triggered.
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Intel 8259A Functional Equivalent Programmable Interrupt Controller
- MCS-80/85 and 8088/8086 processor modes.
- Fully Nested Mode and Special Fully Nested Mode.
- Special Mask Mode.
- Buffered Mode.