Repeater / Mux Buffer Slave CRC Control Reg 0x06

Casey Morrison

Intellectual 1985 points

Posted on behalf of another user:

Question: How should Reg_0x06[3] be set in SMBus slave mode in order to control VOD, DEM, and EQ, and how should Reg_0x05 be set?

over 11 years ago

0 Casey Morrison over 11 years ago

TI__Intellectual 1985 points

Answer: For all repeater and mux buffer devices (i.e. DS80PCIxxx, DS1xxMB203, DS100KRxxx, DS125BRxxx, etc.), the Slave CRC bit should be set to 1 in SMBus Slave mode, Reg_0x06[3]=1. After Reg_0x06[3] is written to 1, then the user can write to key registers in SMBus Slave mode such as EQ, VOD, DEM, etc.

When Reg_0x06[3] is set to 1, then Reg_0x05 (SMBus Slave Mode CRC bits) is not used and can be ignored.

Refer to this other post for more details: http://e2e.ti.com/support/interface/high_speed_interface/f/138/t/276616.aspx

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Repeater / Mux Buffer Slave CRC Control Reg 0x06