ISA CompactFlash Adapter - IDE for 8-Bit PC, XT CF LITE 4.1, XTIDE
What is XT-CF-Lite all about?
XT-CF-Lite is an SD-based storage device for old IBM PCs developed by James Pearce.
- Allows connecting a Compact Flash (CF) card to computers with ISA bus
- The card also supports BIOS extension ROM
- No IBM slot-8 compatibility
- Works with XTs, ATs, and IBM PS/2 models
- If you have IBM 5150 you need a special BIOS programmed (flash the right BIOS)
- IBM 5170 requires a BIOS upgrade to an AMI or AWARD BIOS to utilize this card (Requiring replacing/programming the 2x 27c256 EPROMS)
On the photo:
- ISA CompactFlash Adapter XT-IDE CF LITE 4.1 Bootable (Top)
- ISA CompactFlash Adapter XTIDE Bootable (Bottom)
| SW1.1 | SW1.2 | SW1.3 | I/O Address |
|---|---|---|---|
| ON | ON | ON | 0x300 |
| ON | ON | OFF | 0x320 |
| ON | OFF | OFF | 0x360 |
| OFF | ON | ON | 0x380 |
| OFF | ON | OFF | 0x3A0 |
| OFF | OFF | ON | 0x3C0 |
| OFF | OFF | OFF | 0x3E0 |
| SW2.1 | EEPROM Enable |
|---|---|
| OFF | EEPROM disabled |
| ON | EEPROM enabled |
| SW2.2 | EEPROM Write Enable |
|---|---|
| OFF | EEPROM write disabled |
| ON | EEPROM write enabled |
| SW2.3 | SW2.4 | SW2.5 | SW2.6 | SW2.7 | EEPROM Address |
|---|---|---|---|---|---|
| ON | ON | ON | ON | ON | 0xC0000 |
| ON | ON | ON | ON | OFF | 0xC2000 |
| ON | ON | ON | OFF | ON | 0xC4000 |
| ON | ON | ON | OFF | OFF | 0xC6000 |
| ON | ON | OFF | ON | ON | 0xC8000 |
| ON | ON | OFF | ON | OFF | 0xCA000 |
| ON | ON | OFF | OFF | ON | 0xCC000 |
| ON | ON | OFF | OFF | OFF | 0xCE000 |
| ON | OFF | ON | ON | ON | 0xD0000 |
| ON | OFF | ON | ON | OFF | 0xD2000 |
| ON | OFF | ON | OFF | ON | 0xD4000 |
| ON | OFF | ON | OFF | OFF | 0xD6000 |
| ON | OFF | OFF | ON | ON | 0xD8000 |
| ON | OFF | OFF | ON | OFF | 0xDA000 |
| ON | OFF | OFF | OFF | ON | 0xDC000 |
| ON | OFF | OFF | OFF | OFF | 0xDE000 |
| OFF | ON | ON | ON | ON | 0xE0000 |
| OFF | ON | ON | ON | OFF | 0xE2000 |
| OFF | ON | ON | OFF | ON | 0xE4000 |
| OFF | ON | ON | OFF | OFF | 0xE6000 |
| OFF | ON | OFF | ON | ON | 0xE8000 |
| OFF | ON | OFF | ON | OFF | 0xEA000 |
| OFF | ON | OFF | OFF | ON | 0xEC000 |
| OFF | ON | OFF | OFF | OFF | 0xEE000 |
| OFF | OFF | ON | ON | ON | 0xF0000 |
| OFF | OFF | ON | ON | OFF | 0xF2000 |
| OFF | OFF | ON | OFF | ON | 0xF4000 |
Notes:
- Make sure that selected I/O and EEPROM addresses do not conflict with other devices
- Addresses 0xC0000 - 0xC6000 will conflict with the EGA/VGA BIOS extension
- Addresses 0xC8000 - 0xCA000 might conflict with the XT Hard Disk BIOS extension
- Addresses 0xE0000 and up might conflict with the system BIOS on newer motherboards
- It is recommended to disable EEPROM write once the XT IDE BIOS extension is programmed and configured
Preparing the CF Card
Before formating the CF card, you need to run the FDisk program found in DOS install in order to create partitions. Also, if the CF card was partiotioned on a modern PC computer, it will contain 386 code in the MBR record which will not work on 8088 or 8086 computer. Therefore, you need to use FDISK / MBR with DOS 5 / DOS 6 or use the program HDD Guru in low level format to erase the CF card and the FDisk to make partitions
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