7 | Reserved | R | 0 | Reserved |
6:5 | SET_POWER_STATE | R/U | 00 | This field represents the snooped value of the AUX write
to DPCD address 0x00600. When AUX_SNOOP_DISABLE = 1’b0, the TUSB564-Q1 enables or disables the DP lanes based on the
snooped value. When AUX_SNOOP_DISABLE = 1’b1, then DP lane
enable/disable are determined by state of DPx_DISABLE registers,
where x = 0, 1, 2, or 3. This field is reset to 2’b00 by hardware
when CTLSEL1 changes from a 1’b1 to a 1’b0. |
4:0 | LANE_COUNT_SET | R/U | 00000 | This field represents the snooped value of AUX write to
DPCD address 0x00101 register. When AUX_SNOOP_DISABLE = 1’b0, the
TUSB564-Q1 enables DP lanes specified by the snoop
value. Unused DP lanes are disabled to save power. When
AUX_SNOOP_DISABLE = 1’b1, then DP lanes enable/disable are
determined by DPx_DISABLE registers, where x = 0, 1, 2, or 3. This
field is reset to 0x0 by hardware when CTLSEL1 changes from a 1’b1
to a 1’b0. |