Difference between revisions of "NuXT"
From Vogons Wiki
Michael Dale (Talk | contribs) (→Version 1.2) |
Michael Dale (Talk | contribs) (→Version 1.1) |
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== Version 1.1 == | == Version 1.1 == | ||
| + | |||
| + | * VGA disable fixed | ||
| + | * Floppy disable fixed | ||
| + | * Serial circuitry moved to improve reliability | ||
| + | * Re-arranged board to allow 16-bit cards in 3 of the 4 slots instead of 1 of the 4 | ||
== Version 1.2 == | == Version 1.2 == | ||
Revision as of 16:53, 3 June 2019
Features
- 8088 and NEC V20 support
- 8087 co-processor support
- 4.77MHz, switchable to 9.55MHz with Ctrl-Alt-+
- 2x64K ROM, switchable with DIP switch, writable
- 800K SRAM
- 640K conventional
- up to 160K UMBs (128K max when using VGA)
- Configured DOS 6.22 uses only 10K conventional!
- Highly-compatible TVGA9000i SVGA
- HD Floppy controller, with FM support
- Bootable CF Card Interface - 64MB CF Card Included! Loaded with DOS and ready to go.
- ROM Socket, supporting 8K and 32K ROMs, writable
- 16C550 Serial Port
- PS/2 Keyboard Port
- ATX Power Input. Generates own -5V
- 4 x 8-bit ISA Slots
- Front-panel connector for modern cases
- Highly configurable via DIP switches. All onboard peripherals can be disabled
Version 1.1
- VGA disable fixed
- Floppy disable fixed
- Serial circuitry moved to improve reliability
- Re-arranged board to allow 16-bit cards in 3 of the 4 slots instead of 1 of the 4
Version 1.2
Changes from Version 1.1 include:
- Black PCB
- Memory address decoder SPLD replaced with discrete logic.
- More documentation text on the back
- Changed to 4-layer PCB to make routing easier.
- moved RS222 transceiver next to the UART, and routed to the serial port all 9 wires including GND, alone as if it was a serial cable.
