TJA1082 데이터 시트보기 (PDF) - NXP Semiconductors.

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TJA1082

FlexRay node transceiver

NXP Semiconductors. 

NXP Semiconductors

TXD

BGE

TXEN

BP

BM

TJA1082

FlexRay node transceiver

RXD

Fig 3. Timing diagram in Normal mode

015aaa002

Table 4 describes the behavior of the transmitter in Normal mode, when the temperature

flag (TEMP HIGH) is not set and with no time-out on pin TXEN. Transmitter behavior is

illustrated in Figure 14.

Table 4. Transmitter operation in Normal mode

BGE TXEN TXD Bus state Transmitter

L

X

X

idle

transmitter is disabled

X

H

X

idle

transmitter is disabled

H

L

H

DATA_1

transmitter is enabled; the bus lines are actively driven;

BP is driven HIGH and BM is driven LOW

H

L

L

DATA_0

transmitter is enabled; the bus lines are actively driven;

BP is driven LOW and BM is driven HIGH

The transmitter is activated during the first LOW level on pin TXD while pin BGE is HIGH

and pin TXEN is LOW.

In Normal mode, the normal receiver output is connected directly to pin RXD (see

Table 5). Receiver behavior is illustrated in Figure 15.

Table 5. Behavior of normal receiver in Normal mode

Bus state

RXD

DATA_0

L

DATA_1

H

idle

H

When VIO and VCC are within their operating ranges, pin ERRN indicates the status of the

error flag. See Section 6.8 for a detailed description of error signalling in Normal mode.

TJA1082

Product data sheet

All information provided in this document is subject to legal disclaimers.

Rev. 6 — 28 November 2012

© NXP B.V. 2012. All rights reserved.

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