Tyan Computer TYAN S1572 ATX user manual System Resource, Timer MAP, DMA Channels, Nmi, Irq H/W

6.0 System Resource

6.1. TIMER & DMA CHANNEL MAP

TIMER MAP:	TIMER Channel-0 system timer interrupt
	TIMER Channel-1 DRAM REFRESH request
	TIMER Channel-2 SPEAKER tone generator
DMA CHANNELS:	DMA Channel-0 Available
	DMA Channel-1 Available
	DMA Channel-2 FLOPPY DISK adapter
	DMA Channel-3 Available
	DMA Channel-4 Cascade for DMA controller 1
	DMA Channel-5 Available
	DMA Channel-6 Available
	DMA Channel-7 Available

6.2 INTERRUPT MAP

NMI:	Parity check error
IRQ (H/W)	0	System TIMER interrupt from TIMER-0
	1 KEYBOARD output buffer full
	2 Cascade for IRQ 9-15
	3 SERIAL port 2
	4 SERIAL port 1
	5 PARALLEL port 2
	6 FLOPPY DISK adapter
	7 PARALLEL port 1
	8 RTC clock
	9 Available
	10 Available
	11 Available
	12		PS/2 Mouse
	13		MATH co-processor
	14		Primary IDE
	15		Secondary IDE

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