https://github.com/kitune-san/kf8259
8259/8259A-like Interrupt Controller written in SystemVerilog
https://github.com/kitune-san/kf8259
8259 8259a fpga interrupt interrupt-controller pc pic systemverilog
Last synced: 4 months ago
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8259/8259A-like Interrupt Controller written in SystemVerilog
- Host: GitHub
- URL: https://github.com/kitune-san/kf8259
- Owner: kitune-san
- License: mit
- Created: 2021-04-12T15:20:42.000Z (about 5 years ago)
- Default Branch: main
- Last Pushed: 2023-11-14T14:59:50.000Z (over 2 years ago)
- Last Synced: 2025-06-04T00:05:21.375Z (12 months ago)
- Topics: 8259, 8259a, fpga, interrupt, interrupt-controller, pc, pic, systemverilog
- Language: SystemVerilog
- Homepage:
- Size: 137 KB
- Stars: 8
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
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README
# KF8259 - 8259/8259A-like Interrupt Controller written in SystemVerilog
## About
KF8259 is programmable interrupt controller like 8259/8259A.
## Differences from original
- Clock synchronization
- I/O ports is separated into input and output port
## Features
- MCS-80/85 Mode / 8086 Mode
- Fully Nested Mode
- End of Interrupt
- Automatic End of Interrupt(AEOI) Mode
- Automatic Rotation
- Specific Rotation
- Interrupt Masks
- Special Mask Mode
- Poll Command
- Reading the 8259A Status
- Edge and Level Triggered Modes
- Buffered Mode
- Cascade Mode
## Block
