Intel AN430TX Product Specification - Page 54

BIOS Upgrades, 3.1.3 Plug and Play: PCI Auto-configuration, 3.1.4 PCI IDE Support - manual

Page 54 highlights

AN430TX Motherboard Technical Product Specification 3.1.2 BIOS Upgrades Flash memory simplifies distributing BIOS upgrades. You can install a new version of the BIOS from a diskette. BIOS upgrades are available to be downloaded from the secure section on the Intel bulletin board or from Intel's FTP or World Wide Web sites (see Section 5.2). The disk-based Flash upgrade utility, IFLASH.EXE, has three options for BIOS upgrades: • Update the Flash BIOS from a file on a disk • Copy the current BIOS code from the Flash EEPROM to a disk file as a backup, in the event that an upgrade cannot be successfully completed • Compare the BIOS in the Flash device with a file to make sure the computer has the correct version The upgrade utility ensures that the upgrade BIOS extension matches the target computer to prevent accidentally installing a BIOS for a different type of computer. 3.1.3 Plug and Play: PCI Auto-configuration The PCI auto-configuration utility operates in conjunction with the Setup program to let you insert and remove PCI cards without user configuration (Plug and Play). When you turn on the computer after adding a PCI card, the BIOS automatically configures interrupts, I/O space, and other parameters. Any interrupts set to "available" in Setup are considered free for use by PCI add-in cards. PCI interrupts are distributed to available ISA interrupts that have been not been assigned to an ISA card or to system resources. The assignment of PCI interrupts to ISA IRQs is nondeterministic. An ISA device cannot share an interrupt allocated to PCI. PCI configuration information is stored in ESCD format. You can clear the ESCD data by moving the CMOS Clear jumper (see Section 1.13.3). For information about the version of PCI and Plug and Play supported by this BIOS, see Section 5.1. You can obtain copies of the specifications from the Intel World Wide Web site (see Section 5.2). Peer-to-peer hierarchical PCI Bridge is supported, and by using an OEM-supplied option ROM or TSR, a PCI-to-PCMCIA bridge capability is possible as well. 3.1.4 PCI IDE Support If you select "Auto" in Setup, the BIOS automatically sets up the two local bus IDE connectors with independent I/O channel support. The IDE interface supports hard drives up to PIO Mode 4 and recognizes any ATAPI devices, including CD-ROM drives and tape drives (see Section 5.1 for the supported version of ATAPI). The BIOS determines the capabilities of each drive and configures them to optimize capacity and performance. To take advantage of the high capacities typically available today, hard drives are automatically configured for Logical Block Addressing (LBA) and to PIO Mode 3 or 4, depending on the capability of the drive. You can override the auto-configuration options by specifying manual configuration in Setup. The ATAPI Specification recommends that ATAPI devices be configured as shown in Table 41. 54

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AN430TX Motherboard Technical Product Specification
54
3.1.2
BIOS Upgrades
Flash memory simplifies distributing BIOS upgrades.
You can install a new version of the BIOS
from a diskette.
BIOS upgrades are available to be downloaded from the secure section on the
Intel bulletin board or from Intel’s FTP or World Wide Web sites (see Section 5.2).
The disk-based Flash upgrade utility, IFLASH.EXE, has three options for BIOS upgrades:
Update the Flash BIOS from a file on a disk
Copy the current BIOS code from the Flash EEPROM to a disk file as a backup, in the event
that an upgrade cannot be successfully completed
Compare the BIOS in the Flash device with a file to make sure the computer has the correct
version
The upgrade utility ensures that the upgrade BIOS extension matches the target computer to
prevent accidentally installing a BIOS for a different type of computer.
3.1.3
Plug and Play:
PCI Auto-configuration
The PCI auto-configuration utility operates in conjunction with the Setup program to let you insert
and remove PCI cards without user configuration (Plug and Play).
When you turn on the computer
after adding a PCI card, the BIOS automatically configures interrupts, I/O space, and other
parameters.
Any interrupts set to “available” in Setup are considered free for use by PCI add-in
cards.
PCI interrupts are distributed to available ISA interrupts that have been not been assigned to
an ISA card or to system resources.
The assignment of PCI interrupts to ISA IRQs is
nondeterministic.
An ISA device cannot share an interrupt allocated to PCI.
PCI configuration information is stored in ESCD format.
You can clear the ESCD data by moving
the CMOS Clear jumper (see Section 1.13.3).
For information about the version of PCI and Plug and Play supported by this BIOS, see
Section 5.1.
You can obtain copies of the specifications from the Intel World Wide Web site (see
Section 5.2).
Peer-to-peer hierarchical PCI Bridge is supported, and by using an OEM-supplied
option ROM or TSR, a PCI-to-PCMCIA bridge capability is possible as well.
3.1.4
PCI IDE Support
If you select “Auto” in Setup, the BIOS automatically sets up the two local bus IDE connectors
with independent I/O channel support.
The IDE interface supports hard drives up to PIO Mode 4
and recognizes any ATAPI devices, including CD-ROM drives and tape drives (see Section 5.1 for
the supported version of ATAPI).
The BIOS determines the capabilities of each drive and
configures them to optimize capacity and performance.
To take advantage of the high capacities
typically available today, hard drives are automatically configured for Logical Block Addressing
(LBA) and to PIO Mode 3 or 4, depending on the capability of the drive.
You can override the
auto-configuration options by specifying manual configuration in Setup.
The ATAPI Specification
recommends that ATAPI devices be configured as shown in Table 41.