Rainbow-electronics MAX3345E Bedienungsanleitung PDF herunterladen (Seite 10)

MAX3344E/MAX3345E

±15kV ESD-Protected USB Transceivers

in UCSP with USB Detect

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Table 3a. Truth Table Transmit (SUSP = 0, OE = 0, ENUM = X)

INPUT OUTPUT

MODE VPO VMO D+ D- RCV VPI VMI RESULT

00001001LOGIC 0

00100RCV* 0 0 SE0

01010110LOGIC 1

01100RCV* 0 0 SE0

10000RCV* 0 0 SE0

10101001LOGIC 0

11010110LOGIC 1

11111X11

UNDEFINED

Table 3b. Truth Table Receive (SUSP = 0, OE = 1, ENUM = X)

INPUT OUTPUT

D+ D- RCV

VPI

VMI

RESULT

00RCV* 0 0 SE0

01001LOGIC 0

10110LOGIC 1

11X11UNDEFINED

INPUT OUTPUT

D+ D- RCV

VPI VMI

RESULT

00000VPI/VMI ACTIVE

01001VPI/VMI ACTIVE

10010VPI/VMI ACTIVE

11011VPI/VMI ACTIVE

*Timing specifications are not guaranteed for D+ and D-.

Table 3c. Truth Table Transmit in Suspend* (SUSP = 1, OE = 0, ENUM = X)

INPUT OUTPUT

MODE VPO VMO D+ D- RCV VPI VMI RESULT

00001001LOGIC 0

00100000SE0

01010010LOGIC 1

01100000SE0

10000000SE0

10101001LOGIC 0

11010010LOGIC 1

11111011

UNDEFINED

Table 3d. Truth Table Receive in Suspend* (SUSP = 1, OE = 1, MODE = X, VPO/VMO = X,

ENUM = X)

*Timing specifications are not guaranteed for D+ and D-.

*RCV denotes the signal level on output RCV just before SE0 state occurs. This level is stable during the SE0 period.

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MAX3344E/MAX3345E 1

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