LM3644: Could LM3644 read back actual driving current value from register?

Hi Expert,

Is the value of Last Flash Register (0x0D) only a setting value? or a real driving current value?

I read back Register (0x0D) value in flash mode, but the value is always 0x7F, no change in value.

It is really not like the actual driving current value.

It is more like showing the current setting is the same as the last setting.

Thanks.