tja1082 NXP Semiconductors, tja1082 Datasheet - Page 15

• Manufacturer Part Number: tja1082
• Description: Flexray Node Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TJA1082_2
Product data sheet
6.8 Error signalling
Table 8.
[1]
The TJA1082 provides two modes for error indication:
SPI mode is active on power-up.
To switch to simple error indication mode, SCSN has to be held LOW (connected to GND)
and SCLK held HIGH (connected to V
undervoltage has not occurred).
When the TJA1082 is in simple error indication mode, a rising edge on SCSN initiates a
transition to SPI mode (provided a V
Status
bit
S0
S1
S2
S3
S4
S5
S6
S7
S8
S9
S10
S11
S12
S13
S14
S15
•
•
Also cleared during Power-off.
Simple error indication mode
SPI mode (default mode)
Flag name Set condition
bus wake
Normal
mode
transmitter
enabled
BGE
clamped
PWON
bus error
TEMP
HIGH
TXEN
clamped
UVV
UVV
SPI error
reserved
reserved
reserved
reserved
parity bit
TJA1082 status register
CC
IO
Rev. 02.03 — 10 August 2009
bus wake flag set
Normal mode flag set
transmitter enabled flag set
BGE clamped flag set
PWON flag set
bus error flag set
TEMP HIGH flag set
TXEN clamped flag set
UVV
UVV
SPI error flag set
always LOW
always HIGH
always LOW
always HIGH
odd parity of status bits
CC
IO
flag set
flag set
IO
IO
undervoltage has not occurred).
) for longer than t
Reset condition
bus wake flag cleared
Normal mode flag cleared
transmitter enabled flag cleared
BGE clamped flag cleared
PWON flag cleared and successful
readout
bus error flag cleared and successful
readout
TEMP HIGH flag cleared and
successful readout
TXEN clamped flag cleared and
successful readout
UVV
readout
UVV
readout
SPI error flag cleared and successful
readout
even parity of status bits
det(L)(SCLK)
CC
IO
flag cleared and successful
FlexRay node transceiver
[1]
[1]
flag cleared and successful
[1]
[1]
[1]
(provided a V
© NXP B.V. 2009. All rights reserved.
TJA1082
[1]
[1]
IO
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