Espressif ESP32 Technical Reference Manual page 371

13 UART Controller (UART)
31
0 0 0 0 0 0 0
UART_HIGHPULSE_MIN_CNT This register stores the value of the minimum duration of the high
level pulse. It is used in baud rate detection process. (RO)
31
0 0 0 0 0 0 0
UART_RXD_EDGE_CNT This register stores the count of the RxD edge change. It is used in the
baud rate detection process. (RO)
Espressif Systems
Register 13.12. UART_HIGHPULSE_REG (0x2C)
20 19
0 0 0 0 0
Register 13.13. UART_RXD_CNT_REG (0x30)
0 0 0 0 0 0 0 0
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0x0FFFFF
10 9
0 0 0 0 0 0 0
371
0
Reset
0
0x000 Reset
ESP32 TRM (Version 5.2)