FDC37C93XAPM View Datasheet(PDF) - SMSC -> Microchip

Part Name

Description

Manufacturer

FDC37C93XAPM

Plug and Play Compatible Ultra I/O™ Controller with Soft Power Management

SMSC -> Microchip 

t2

PCOBF

t1

AUXOBF1

nWRT

IBF

nRD

t3

FIGURE 20 - INTERNAL 8042 CPU TIMING

NAME

DESCRIPTION

t1 nWRT Deasserted to AUXOBF1 Asserted (Notes 1,2)

t2 nWRT Deasserted to PCOBF Asserted (Notes 1,3)

t3 nRD Dasserted to IBF Deasserted (Note 1)

Note 1: IBF, nWRT and nRD are internal signals.

Note 2: PCOBF is used for the Keyboard IRQ.

Note 3: AUXOBF1 is used for the Mouse IRQ.

MIN TYP MAX UNITS

40

ns

40

ns

40

ns

251

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