6P2LX
I440LX PAGE
30
3-14 TIME & DMA CHANNELS MAP
TIME 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 ONBOARD ECP (OPTION)
DMA CHANNEL 2 FLOPPY DISK (SMC CHIP)
DMA CHANNEL 3 ONBOARD ECP (DEFAULT)
DMA CHANNEL 4 CASCADE FOR DMA CONTROLLER 1
DMA CHANNEL 5 AVAILABLE
DMA CHANNEL 6 AVAILABLE
DMA CHANNEL 7
AVAILABLE
3-15 INTERRUPT MAP
NIMI: NON-MASKABLE INTERRUPT
IRQ(H/W): 0 SYSTEM TIMER INTERRUPT FROM TIMER 0
1 KEYBOARD OUTPUT BUFFER FULL
2 CASCADE FOR IRQ8-15
3 SERIAL PORT2
4 SERIAL PORT1
5 PARALLEL PORT 2
6 FLOPPY DISK (SMC CHIP)
7 PARALLEL PORT 1
8 RTC CLOCK
9 AVAILABLE
10 AVAILABLE
11 AVAILABLE
12 PS/2 MOUSE
13 MATH COPROCESSOR
14 ONBOARD HARD DISK (IDE1) CHANNEL
15 ONBOARD HARD DISK (IDE2) CHANNEL
Содержание 6P2LX
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