SMBus can be used to control following
parameters on the outputs:
- Global Output Amplitude: To
program output VOD from 600 mV to 975 mV with a step size of 25 mV.
- SMBus Output Control: To enable
or disable CLK0 to CLK19 through register bits.
- Output Slew Rate Control: To
program slow and fast setting for output slew rate.
- SBI Mask Register: To enable or
disable SBI mask bits. When mask bit is enabled, output is controlled through
SMBus and SBI control does not have any affect on the output. This is used when
critical outputs needs to stay on.
- OE# Pin Readback: To read status
of OE# pins.