Floppy Controller ISA Lab - Engineering Application
Legacy floppy controller integration, diagnostics, and data recovery profiles for 360KB, 720KB, 1.2MB, and 1.44MB workflows.
- Interface
- 8-bit and 16-bit ISA controller variants
- Drive Modes
- 360KB, 720KB, 1.2MB, 1.44MB verified
- BIOS Pairing
- XT and AT BIOS compatibility tables
- Signal Checks
- Index, step, direction, ready, and write gate diagnostics
- Recovery Toolkit
- Read-retry and sector salvage operation notes
- Test Harness
- Head alignment and media condition scripts
EMS Expansion Boards - Engineering Application
LIM 4.0 focused EMS board and backplane line for pre-386 platforms, designed for deterministic page-frame mapping and predictable software compatibility.
- Standard
- LIM EMS 4.0 page-frame compatibility
- Frame Windows
- D000h and E000h profile sets
- Capacity Range
- 2MB to 8MB banked architecture
- Configuration
- Register maps with conflict-safe presets
- Validation Suite
- Lotus 1-2-3, QEMM, DOS extender scenarios
- Deployment Form
- Single-card and modular backplane builds
ISA Memory Expander - Engineering Application
Bank-switched memory expansion module tuned for XT, AT, and 286 deployments requiring deterministic mapping, parity instrumentation, and robust coexistence with DMA-heavy workloads.
- Capacity Profiles
- 256KB, 512KB, 1MB address-space maps
- Parity Modes
- Strict parity enforcement and monitor-only mode
- Switching
- Hardware DIP plus jumper matrix for deterministic layout
- Timing Control
- Wait-state presets for weak chipset implementations
- Diagnostics Tooling
- DOS burn-in suite with map integrity reports
- Target Systems
- 8088, V20, 286, 386SX hybrid benches
XT-Emporium