82371SB Ver la hoja de datos (PDF) - Intel

Número de pieza

componentes Descripción

Fabricante

82371SB

PCI ISA IDE XCELERATOR

Intel 

82371FB (PIIX) AND 82371SB (PIIX3)

Figure 13 is a schematic of the NAND tree circuitry.

MDRQ1

MDRQ0

RSTDRV

DREQ1

DACK1#

DACK1#

NAND CHAIN

SELECT

E

KBCCS#

XOE#

XDIR

XDIR

NAND CHAIN

SELECT

051917_3.drw

Figure 13. NAND Tree Circuitry

051917

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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