16
Description
IDE Support
IDE Interfaces
The ICH2’s IDE controller has two independent bus-mastering IDE interfaces that can be
independently enabled. The IDE interfaces support the following modes:
• Programmed I/O (PIO): processor controls data transfer.
• 8237-style DMA: DMA offloads the processor, supporting transfer rates of up to 16 MB/
sec.
• Ultra DMA: DMA protocol on IDE bus supporting host and target throttling and transfer
rates of up to 33 MB/sec.
• ATA-66: DMA protocol on IDE bus supporting host and target throttling and transfer
rates of up to 66 MB/sec. ATA-66 protocol is similar to Ultra DMA and is device driver
compatible.
• ATA-100: DMA protocol on IDE bus allows host and target throttling. The ICH2’s ATA-
100 logic can achieve transfer rates up to 100 MB/sec.
NOTE
ATA-66 and ATA-100 are faster timings and require a specialized cable to reduce reflections,
noise, and inductive coupling.
The IDE interfaces also support ATAPI devices (such as CD-ROM drives) and ATA devices
using the transfer modes.
The BIOS supports Logical Block Addressing (LBA) and Extended Cylinder Head Sector (ECHS)
translation modes. The drive reports the transfer rate and translation mode to the BIOS.
The MAXDATA Fusion 6000 System board supports Laser Servo (LS-120) diskette tech-
nology through the IDE interfaces. An LS-120 drive can be configured as a boot device by
setting the BIOS Setup program’s Boot menu to one of the following:
• ARMD-FDD (ATAPI removable media device – floppy disk drive)
• ARMD-HDD (ATAPI removable media device – hard disk drive)
BIOS
The MAXDATA
Fusion
6000 System board uses an Intel
®
/AMI BIOS that is stored in the
Firmware Hub (FWH) and can be updated using a disk-based program. The FWH contains the
BIOS Setup program, POST, the PCI auto-confi guration utility, and Plug and Play support.
The MAXDATA
Fusion
6000 System board supports system BIOS shadowing, allowing the
BIOS to execute from 64-bit onboard write-protected system memory.
The BIOS displays a message during POST identifying the type of BIOS and a revision code.
The initial production BIOS is identifi ed as PT84510A.86B.
When the MAXDATA
Fusion
6000 System board’s jumper is set to confi guration mode and
the system is powered-up, the BIOS compares the processor version and the microcode
version in the BIOS and reports if the two match.
PCI Auto Configuration
The BIOS can automatically configure PCI devices. PCI devices may be onboard or add-in
cards. Auto configuration lets a user insert or remove PCI cards without having to configure
the system. When a user turns on the system after adding a PCI card, the BIOS automatically
configures interrupts, the I/O space, and other system resources. Any interrupts set to
Available in Setup are considered to be available for use by the add-in card. Auto configuration
information is stored in ESCD format.
Summary of Contents for FUSION 6000 I
Page 1: ...1 MAXDATA Fusion 6000 System Manual MAXDATA Fusion 6000...
Page 2: ...2 Inhalt...
Page 6: ...6 Contents...
