tja1080 NXP Semiconductors, tja1080 Datasheet - Page 23

• Manufacturer Part Number: tja1080
• Description: Flexray Transceiver
• Manufacturer: NXP Semiconductors

NXP Semiconductors
TJA1080_2
Product data sheet
7.7.3 Wake flag
7.7.4 Power-on flag
7.7.5 Node configuration flag
7.7.6 Temperature medium flag
7.7.7 Temperature high flag
7.7.8 TXEN_BGE clamped flag
The wake flag is set if one of the following events occurs:
In node configuration the wake flag is reset by entering Normal mode, a low power mode
or setting one of the undervoltage flags. In star configuration the wake flag is reset by
entering a low power mode or by recovery of the UV
The PWON flag is set if the internal supply voltage for the digital part becomes higher than
the lowest value it needs to operate. In node configuration, entering Normal mode resets
the PWON flag. In star configuration the PWON flag is reset when the UV
LOW (no undervoltage detected).
Configuration flag set means node configuration.
The temperature medium flag is set if the junction temperature exceeds T
normal power mode. The temperature medium flag is reset when the junction temperature
becomes lower than T
register in a low power mode. No action will be taken if this flag is set.
The temperature high flag is set if the junction temperature exceeds T
power mode.
In node configuration the temperature high flag is reset if a negative edge is applied to pin
TXEN while the junction temperature is lower than T
star configuration the temperature high flag is reset by any activity detection (edge) while
the junction temperature is lower than T
If the temperature high flag is set the transmitter is disabled and pins TRXD0 and TRXD1
are switched off.
The TXEN_BGE clamped flag is set if pin TXEN is LOW and pin BGE is HIGH for longer
than t
BGE is LOW. If the TXEN_BGE flag is set, the transmitter is disabled.
•
•
•
•
The local or remote wake-up source flag is set (edge sensitive)
A positive edge is detected on pin STBN if V
Recovery of the UV
By recognizing activity on pins TRXD0 and TRXD1 (only in star configuration)
detCL(TXEN_BGE)
. The TXEN_BGE clamped flag is reset if pin TXEN is HIGH or pin
j(warn)(medium)
Rev. 02 — 12 July 2007
VBAT
flag (only in node configuration)
in a normal power mode and after a read of the status
j(dis)(high)
in a normal power mode.
IO
is present
VCC
j(dis)(high)
signal (without t
in a normal power mode. In
FlexRay transceiver
j(dis)(high)
© NXP B.V. 2007. All rights reserved.
TJA1080
rec(uv)(VCC)
j(warn)(medium)
VCC
signal goes
in a normal
).
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