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HP Kayak XU 04xx HP Kayak XU PC Workstation Technical Reference Manual Hardwar - Page 64

DMA Channel Controllers, DMA controller, Channel, Function, I/O Address Ports

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4 HP BIOS BIOS Addresses I/O Address Ports 0378h - 037Ah 0388h - 038Bh 03B0h - 03DFh 03E8h - 03EFh 03F0h - 03F5h 03F6h 03F7h 03F8h - 03FFh 0678h - 067Bh 0778h - 077Bh 0CF8h - 0CFFh 8000 8400 8800 Function Parallel port 1 (LPT1) AD1816 Ad-lib (FM) Video controller Serial port 3 (COM3) Primary flexible disk drive controller IDE primary channel Primary flexible disk drive controller Serial port 1 (COM1) Parallel port if ECP mode is selected 2 (LPT2 ECP) Parallel port if ECP mode is selected 1 (LPT1 ECP) Configuration registers for PCI devices PIIX4 Power Management I/O space NS317 ACPI Registers PIIX4 SMBus I/O space DMA Channel Controllers Only "I/O-to-memory" and "memory-to-I/O" transfers are allowed. "I/O-to-I/O" and "memory-to-memory" transfers are disallowed by the hardware configuration. The system controller supports seven DMA channels, each with a page register used to extend the addressing range of the channel to 16 MB. The following table summarizes how the DMA channels are allocated. Channel 0 1 2 3 4 5 6 7 DMA controller Function AD1816 Capture AD1816 Playback NS317 Flexible disk controller NS317 LPT ECP Cascade from first DMA controller Free Free Free 56

Section	Page
Technical Reference Manual	1
Notice	2
Preface	3
Conventions	3
Bibliography	3
How to use this online guide	4
Contents	5
System Overview	9
External Features	10
Internal Features	11
Specifications and Characteristic Data	11
Hardware Control Panel	11
Physical Characteristics	11
Electrical Specifications	12
Environmental Specifications	13
Documentation	14
Where to Find the Information	15
System Board	17
System Board	18
Architectural View	19
Chip-Set	20
The PAC Chip (440LX)	20
The PIIX4, PCI/ISA Bridge Chip (82371SB)	21
Devices on the Processor-Local Bus	23
Intel Pentium II Microprocessor	23
Cache Memory	25
Optional Second Microprocessor	26
Devices on the Main Memory Bus	27
Main Memory	27
Devices on the PCI Bus	28
Small Computer System Interface (SCSI) Controllers	28
Integrated Drive Electronics (IDE)	29
Universal Serial Bus (USB) Controller	30
Other PCI Accessory Devices	30
Accelerated Graphics Port (AGP) Controller	31
Devices on the SM Bus	32
Serial EEPROM	32
LM75 Chip	33
LM78 Chip	33
Main PLL	33
Devices on the ISA Bus	34
The Super I/O Controller (NS 87317)	34
Audio Controller	35
Flash EEPROM	35
Little Ben	38
Other ISA Accessory Devices	39
Interface Boards and Mass-Storage Drives	41
Matrox Millennium II Video Controller Board	42
Video Memory	43
Available Video Resolutions	43
Further Information	45
HP FastRAID Solution	46
10BT/100TX LAN Controller	49
10BT/100TX LAN Features	50
Remote Power On	50
Mass-Storage Drives	52
Hard Disk Drives (subject to change)	52
Flexible Disk Drives	52
CD-ROM Drives	52
Connectors and Sockets	53
HP BIOS	59
HP/Phoenix BIOS Summary	60
SCSISelect Utility	60
Power Saving and Ergonometry	61
Power-On from Space-Bar	61
Power Button Override	61
Package Intrusion Feature	61
BIOS Addresses	62
System Memory Map	62
HP I/O Port Map (I/O Addresses Used by the System 1 )	63
DMA Channel Controllers	64
Interrupt Controllers	65
PCI Interrupt Request Lines	67
Power-On Self-Test and Error Messages	69
Order in Which the Tests are Performed	70
Error Message Summary	77
Beep Codes	81