Espressif ESP32 Technical Reference Manual page 570

21 Two-wire Automotive Interface (TWAI)
31
0 0 0 0 0 0 0
TWAI_RESET_MODE This bit is used to configure the operating mode of the TWAI Controller. 1:
Reset mode; 0: Operating mode (R/W)
TWAI_LISTEN_ONLY_MODE 1: Listen only mode. In this mode the nodes will only receive messages
from the bus, without generating the acknowledge signal nor updating the RX error counter.
(R/W)
TWAI_SELF_TEST_MODE 1: Self test mode. In this mode the TX nodes can perform a successful
transmission without receiving the acknowledge signal. This mode is often used to test a single
node with the self reception request command. (R/W)
TWAI_RX_FILTER_MODE This bit is used to configure the filter mode. 0: Dual filter mode; 1: Single
filter mode (R/W)
31
0 0 0 0 0 0 0
TWAI_BAUD_PRESC Baud Rate Prescaler, determines the frequency dividing ratio. (RO
TWAI_SYNC_JUMP_WIDTH Synchronization Jump Width (SJW), 1 ~ 4 Tq wide. (RO
Espressif Systems
Figure 21-11. Positions of Arbitration Lost Bits
Register 21.1. TWAI_MODE_REG (0x0000)
0 0 0 0 0 0 0 0
Register 21.2. TWAI_BUS_TIMING_0_REG (0x0018)
0 0 0 0 0 0 0 0
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0 0 0 0 0 0 0 0
0 0 0 0 0 0 0 0
570
4 3 2 1
0 0 0 0 0 0 0 0
8 7 6 5
0 0x0 0x00
| R/W)
| R/W)
ESP32 TRM (Version 5.2)
0
1
Reset
0
Reset