FW82371EB Q 657 Intel, FW82371EB Q 657 Datasheet - Page 16

• Manufacturer Part Number: FW82371EB Q 657
• Manufacturer: Intel

Specifications of FW82371EB Q 657

• Lead Free Status / RoHS Status: Not Compliant

Intel
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82371EB (PIIX4E)
VCC Specification Change
The 82371AB (PIIX4) PCI ISA IDE Xcelerator Timing Specifications Document identifies the VCC
range as 3.3v +/- .3V. This specification is changed to 3.3V +/- 5% for both the PIIX4 and the PIIX4E.
INTLN Register Not Implemented
The PIIX4 Datasheet specified that the INTLN register contains interrupt information concerning the
power management module. However, this register is not implemented and is RESERVED.
This change applies to all steppings of the PIIX4 and PIIX4E and will be incorporated into the next
revision of the datasheets.
USB Host Controller Supports USB 1.1
The PIIX4 Datasheet specifies that the USB Host Controller is USB supports the USB Revision 1.0
Specification. The USB Host Controller in the PIIX4 and PIIX4E is USB Revision 1.1 compliant.
This change applies to all steppings of the PIIX4 and PIIX4E and will be incorporated into the next
revision of the datasheet.
VOL/IOL For SMI# Changes to 10mA @ 450mV
The DC characteristics for SMI#, as specified in the 82371AB (PIIX4) PCI ISA IDE Xcelerator Timing
Specification Datasheet Addendum, is changed from 7mA @ 400mV to 10mA @ 450mV to
accommodate stronger external pull-up resistors.
DC Spec Change for all CPU CMOS I/F Signals to 9.7mA @450mV
The DC characteristics for all CPU CMOS I/F Signals, as specified in the 82371AB (PIIX4) PCI ISA
IDE Xcelerator Timing Specification Datasheet Addendum, is now changed to 9.7mA @ 450mV to
accommodate stronger external pull-up resistors. This applies to A20M#, IGNNE#, INIT#, INTR, NMI,
SLP#, STPCLK#, CPURST, and SMI#. This change supercedes the Specification Change #17 (above)
for SMI#.
Specification Update
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