Espressif ESP32 Technical Reference Manual page 581

21 Two-wire Automotive Interface (TWAI)
31
0 0 0 0 0 0 0
TWAI_RX_INT_ST Receive interrupt. If this bit is set to 1, it indicates there are messages to be
handled in the RX FIFO. (RO)
TWAI_TX_INT_ST Transmit interrupt. If this bit is set to 1, it indicates the message transmitting mis-
sion is finished and a new transmission is able to execute. (RO)
TWAI_ERR_WARN_INT_ST Error warning interrupt. If this bit is set to 1, it indicates the error status
signal and the bus-off status signal of Status register have changed (e.g., switched from 0 to 1
or from 1 to 0). (RO)
TWAI_OVERRUN_INT_ST Data overrun interrupt. If this bit is set to 1, it indicates the data in the RX
FIFO is invalid. (RO)
TWAI_ERR_PASSIVE_INT_ST Error passive interrupt. If this bit is set to 1, it indicates the TWAI Con-
troller is switched between error active status and error passive status due to the change of
error counters. (RO)
TWAI_ARB_LOST_INT_ST Arbitration lost interrupt. If this bit is set to 1, it indicates an arbitration lost
interrupt is generated. (RO)
TWAI_BUS_ERR_INT_ST Error interrupt. If this bit is set to 1, it indicates an error is detected on the
bus. (RO)
Espressif Systems
Register 21.26. TWAI_INT_RAW_REG (0x000C)
0 0 0 0 0 0 0 0
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0 0 0 0 0 0 0 0
581
8 7 6 5 4 3 2 1
0 0 0 0 0 0 0 0
ESP32 TRM (Version 5.2)
0
0 Reset