Ampro Corporation 486E - Manual (Page 96)

Little Board™/486e Technical Manual
2–80
Floppy Interface Enable
Enable or disable the onboard floppy interface. When disabled, the I/O ports assigned to the floppy
controller become available, allowing them to be used by other devices installed on the expansion
bus. Table 2–56 lists the resources used by the floppy controller.
Table 2–56. Floppy Controller Resources
Selection I/O Address IRQ DMA
Enabled 03F2h - Digital Output Register
03F4h - Main Status Register
03F5h - Data Register
03F7h - Control Register IRQ6 DMA 2
Disable None None None
IDE Interface Enable
Enable or disable the onboard IDE hard disk interface. When disabled, the I/O ports and IRQ
assigned to the IDE controller become available, allowing them to be used by other devices
installed on the expansion bus. Table 2–57 lists the resources used by the IDE interface.
Table 2–57. IDE Controller Resources
Selection I/O Address Interrupt
Enabled 01F0h - 01F7 Control and Data Registers
03F7h Shared with FDC
IRQ14
Disable None None
If an IDE drive is attached to J6, disabling the IDE interface does not free the IRQ14 interrupt
since it is connected directly to the drive. The cable must be disconnected.
Hot Key Setup Enable
In some embedded systems, end-users are not permitted to use the hot-key sequence (CTRL-ALT-
ESC) to enter SETUP. Hot key access to SETUP can be enabled or disabled using this parameter.
This also prevents “+++” from entering SETUP when using the serial console feature.