SLUSFG2A September 2024 – November 2024 TPS6286A06 , TPS6286B10
PRODMIX
The controller generates a start condition followed by a valid serial byte containing HS controller code 00001XXX. This transmission is made in F/S-mode at no more than 400kbps. No device is allowed to acknowledge the HS controller code, but all devices must recognize the HS controller code and switch the internal setting to support 3.4Mbps operation.
The controller then generates a repeated start condition (a repeated start condition has the same timing as the start condition). After this repeated start condition, the protocol is the same as F/S-mode, except that transmission speeds up to 3.4Mbps are allowed. A stop condition ends the HS mode and switches all the internal settings of the target devices to support the F/S mode. Instead of using a stop condition, repeated start conditions must be used to secure the bus in HS-mode.
Attempting to read data from register addresses not listed in this section results in 0x00 being read out.