DRV8846: Using multiple devices

For using 2x DRC8846 devices:

1. Can we tie nENBL low and only use nSLEEP to enable/disable?

2. Can we share tri-state pins between between the two DRVs? I.e. tie the two I0 pins together. Will there be any race conditions as each device exits sleep?

3. How sensitive are the tri-state pins to noise, e.g. during HiZ state?  Do you foresee any issues with adding small capacitance to help filter the noise?

Thanks,

Michael