DMA Channel Assignments, IRQ14 | Dell 100-Mbps specs

	Table 1-3. Interrupt Assignments (continued)

IRQ Line	Used By/Available

IRQ8	Generated by keyboard controller for each tick of RTC.
IRQ9	Available for use by expansion card.
IRQ10	Available for use by expansion card.
IRQ11	Available for use by expansion card.
IRQ12	Generated by keyboard controller to indicate that mouse’s output
	buffer is full.
IRQ13	Generated by math coprocessor to indicate coprocessor error.
IRQ14	Generated by device connected to primary EIDE port to indicate
	that device requires service. If no EIDE devices are installed, this
	line is available for other use.
IRQ15	Generated by device connected to secondary EIDE port to indi-
	cate that device requires service. If no device is connected to
	secondary EIDE port, IRQ15 is available for use by expansion
	card.

DMA Channel Assignments

	Table 1-4. DREQ Line Assignments
DREQ Line	Used By/Available

DREQ0	Available
DREQ1	Available
DREQ2	Generated by super I/O controller to initiate DMA cycle for
	attached diskette drive
DREQ3	Available
DREQ4	Generated by bus controller chip to activate second DMA con-
	troller
DREQ5	Available (default) DMA on-board sound controller
DREQ6	Available
DREQ7	Available

System Overview 1-15