TJA1080ATSSLASH2SLASHT datasheet(16/49 Pages) NXP

16 / 49 page

TJA1080A

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Product data sheet

Rev. 5 — 24 February 2011

16 of 49

NXP Semiconductors

TJA1080A

FlexRay transceiver

(1) At the first battery connection the transceiver will enter the Star-standby mode.

Fig 6.

State diagram in star configuration

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STAR TRANSMIT

INH1 = HIGH

INH2 = HIGH

STAR IDLE

INH1 = HIGH

INH2 = HIGH

STAR LOCKED

INH1 = HIGH

INH2 = HIGH

STAR SLEEP

INH1 = floating

INH2 = floating

idle detected on

TRXD0, TRXD1,

TXEN and the

bus lines

TRXD0, TRXD1,

TXEN activity detected

STAR RECEIVE

INH1 = HIGH

INH2 = HIGH

STAR STANDBY(1)

INH1 = HIGH

INH2 = HIGH

idle detected on

TRXD0, TRXD1,

TXEN and the

bus lines

idle detected on

the bus lines

and TXEN for longer

than tto(locked-idle)

TXEN activity detected for

longer than tto(tx-locked)

bus activity detected for

longer than tto(rx-locked)

bus activity

detected

wake

flag 1

wake flag 1 or

UVVCC signal 0

no acivity on TRXD0,

TRXD1, TXEN and the

bus lines for longer

than tto(idle-sleep)

from any mode if UVVCC

flag is set regardless PWON flag

from star idle, star

transmit or star receive if

wake flag set and under

voltage present on VCC

for longer than

t > tto(uv)(VCC)

time in star

locked longer

than tto(locked-sleep)

TJA1080ATS/2/T Datasheet(PDF) 16 Page - NXP Semiconductors

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