HP ProSignia 120 Maintenance And Service Manual
Download Maintenance and service manual of HP 140 All in One Printer, Copier for Free or View it Online on All-Guides.com. This version of HP 140 Manual compatible with such list of devices, as: 140, 155, 160, 170
Brand: HP
Category: All in One Printer , Copier , Laptop , Printer
Type: Maintenance and service manual
Model: HP 140 , HP 155 , HP 160 , HP 170
Pages: 144 (2.84 Mb)
6-14 Specifications
6.12 System Interrupts
Table 6-14
Hardware Interrupts
Hardware IRQ System Function
IRQ0 Timer interrupt
IRQ1 Keyboard
IRQ2 Interrupt controller cascade
IRQ3 COM 2
IRQ4 COM 1
IRQ5 Audio
IRQ6 Diskette Drive controller
IRQ7 EPP Parallel
IRQ8 Real-Time Clock (MSIO)
IRQ9 PCI devices
IRQ10 Unused
IRQ11 Used by PCMCIA
IRQ12 Mouse
IRQ13 Floating point error input
IRQ14 Primary IDE interface
IRQ15 Secondary IDE interface
6.13 System DMA
Table 6-15
DMA Channels
Hardware DMA System Function
DMA 0 Fast infrared or Audio controller
DMA 1 Audio controller
DMA 2 Diskette drive controller
DMA 3 EPP Parallel Port
DMA 4 Not assigned
DMA 5 Audio Controller
DMA 6 Not assigned
DMA 7 Not assigned