STMicroelectronics /STM32H7x7_CM4 /I2C1 /I2C_TIMEOUTR

Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text Text

Interpret as I2C_TIMEOUTR

31 2827 2423 2019 1615 1211 87 43 0 0 0 0 0 0 0 0 00 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0TIMEOUTA0 (TIDLE)TIDLE 0 (TIMOUTEN)TIMOUTEN 0TIMEOUTB0 (TEXTEN)TEXTEN

Description

Access: No wait states, except if a write access occurs while a write access to this register is ongoing. In this case, wait states are inserted in the second write access until the previous one is completed. The latency of the second write access can be up to 2 x PCLK1 + 6 x I2CCLK.

Fields

TIMEOUTA

Bus Timeout A This field is used to configure: The SCL low timeout condition tTIMEOUT when TIDLE=0 tTIMEOUT= (TIMEOUTA+1) x 2048 x tI2CCLK The bus idle condition (both SCL and SDA high) when TIDLE=1 tIDLE= (TIMEOUTA+1) x 4 x tI2CCLK Note: These bits can be written only when TIMOUTEN=0.

TIDLE

Idle clock timeout detection Note: This bit can be written only when TIMOUTEN=0.

TIMOUTEN

Clock timeout enable

TIMEOUTB

Bus timeout B This field is used to configure the cumulative clock extension timeout: In master mode, the master cumulative clock low extend time (tLOW:MEXT) is detected In slave mode, the slave cumulative clock low extend time (tLOW:SEXT) is detected tLOW:EXT= (TIMEOUTB+1) x 2048 x tI2CCLK Note: These bits can be written only when TEXTEN=0.

TEXTEN

Extended clock timeout enable

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