2 Functional Tables

STUSB02E

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2

Functional Tables

Table 2.

Function Selection

(1) During suspend VP and VM are active in order to detect out of band signalling conditions

Table 3.

Truth Table During Normal Mode

X = Undefined

SUS

OE#

D+, D-

RCV

VP/VM

FUNCTION

L

L

Driving

Active

Active

Normal transmit mode

L

H

Receiving

Active

Active

Normal receive mode

H

L

Hi-Z

L

Not Active Low power state

HH

Hi-Z

L

Active

OE# = L

INPUT

OUTPUT

RESULT

VP

VM

D+

D-

RCV

L

LLL

X

SE0

LH

L

H

L

Logic Low

H

L

H

L

H

Logic High

H

H

XXX

Undefined

OE# = H

INPUT

OUTPUT

RESULT

D+

D-

VP

VM

RCV

L

LLL

X

SE0

LH

L

H

L

Logic Low

H

L

H

L

H

Logic High

H

H

XXX

Undefined