HP Vectra VT 6/xxx HP Vectra XU 6/xxx and VT 6/xxx PCs - Technical Reference M - Page 35
Irq Map For Accessory Boards
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INTEGRATED COMMS Parallel Port Sets the parallel port as LPT1 or LPT2 or disabled Parallel Port Mode Sets the parallel port into Centronics, ECP or EPP mode Serial Port A Sets serial port A to COM1, COM2, COM3, COM4 or disabled Serial Port B Sets serial port B to COM1, COM2, COM3, COM4 or disabled AUDIO Audio Functions Specifies whether the audio system is used Base I/O Address Select which protocol will be used for Remote Start IRQ line Selects between the IRQ lines that can be allocated to the audio system 8-bit DMA Channel Selects between the DMA channels that can be allocated to the audio system for 8 bit transfers 16-bit DMA Channel Selects between the DMA channels that can be allocated to the audio system for 16-bit transfers MIDI Port Base I/O Address Selects between the base address that can be allocated to the audio system Joystick/Game Port Defines whether used or not IRQ MAP FOR ACCESSORY BOARDS IRQ 9 View available IRQ channels and select which IRQs are used by installed accessory boards IRQ 10 If you have installed an ISA board, this is used to tell Setup which IRQ the board uses, and allows PCI boards to be configured automatically IRQ 11 IRQ 15 IRQ 12 PC Serial Number Displays the PC serial number Parallel 1 (378h, IRQ7) / Parallel 2 (278h, IRQ5) / Disabled Centronics(R) / Bi-directional EPP / Bi-directional ECP (DMA1 / DMA3) Serial 1 (3F8h, IRQ4) / Serial 2 (2F8h, IRQ3) / Serial 3 (3E8h, IRQ4) / Serial 4 (2E8h, IRQ3) / Disabled Serial 1 (3F8h, IRQ4) / Serial 2 (2F8h, IRQ3) / Serial 3 (3E8h, IRQ4) / Serial 4 (2E8h, IRQ3) / Disabled Enabled / Disabled 220h / 240h / 260h / 280h 5 / 7 / 10 1 / 3 5 / 7 300h / 330h Enabled/Disabled Used by ISA board / Available for PCI or PnP Used by ISA board / Available for PCI or PnP Used by ISA board / Available for PCI or PnP Used by IDE Secondary Channel Mouse / Accessory Board Cannot be changed If the peripheral has an ECP/EPP interface, use a compatible cable. Serial port A and serial port B cannot be set to the same address, or the same IRQ. If disabled, the audio fields default to "Not Available". Always leave at least two IRQs set as being "Available for PCI". IRQ12 is normally used by the mouse. Automatically detected.