DAC3174: Dual 7 bit interface

Hi David,
The FUSE_CNTL register is not related to the mode configuration except some power-up defaults.

Datasheet section 7.5.1 has a recommended startup sequence for the device that your solution should go through on power-up.
To set up dual 7-bit you will have to include your settings as part of the SIF register config.
Some registers to you will need to set up :
config0 0x00[14] dual_ena
0x00[13:12] chipwidth
config1 0x01[13] fullwordinterface_ena
...

Your solution will probably require other settings as well so be sure to work down the config_x register tables to understand the device features.

Regards,
Brian

Hi Brian,

We read 80h in register FUSE_CNTL and not 00h as should be the default value (according to the datasheet).

Is that value OK if we want to work in dual channel mode?

Thank you,

David