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PIIX3 Scheda tecnica(PDF) 122 Page - Intel Corporation

Il numero della parte PIIX3
Spiegazioni elettronici  82371FB (PIIX) AND 82371SB (PIIX3) PCI ISA IDE XCELERATOR
PDF  122 Pages
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Produttore elettronici  INTEL [Intel Corporation]
Homepage  http://www.intel.com
Logo INTEL - Intel Corporation

PIIX3 Scheda tecnica(HTML) 122 Page - Intel Corporation

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82371FB (PIIX) AND 82371SB (PIIX3)
E
122
Figure 13 is a schematic of the NAND tree circuitry.
MDRQ1
MDRQ0
RSTDRV
DREQ1
KBCCS#
XOE#
DACK1#
NAND CHAIN
SELECT
DACK1#
XDIR
NAND CHAIN
SELECT
XDIR
051917_3.drw
051917
Figure 13. NAND Tree Circuitry
NAND Tree Timing Requirements
Allow 500 ns for the input signals to propagate to the NAND tree outputs (input-to-output propagation delay
specification).
5.3.
Tri-state Mode
The TESTIN# signal must be 0 and IRQ’s 7, 6, and 5 must be 1 to enter the tri-state test mode. When in the
tri-state test mode, all outputs and bi-directional pins are tri-stated, including the NAND tree outputs.



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