RT1730
Addr
Length
RegName
Bit
BitName
Default
Type
Description
0b : TCPC delivers at least 1W on VCONN
1
0x1C
1
POWER_CONT
ROL
0b : Disable VCONN Source (default)
0
EN_VCONN
0
RW
1b : Enable VCONN Source to CC
Required
7:6
Reserved
0
R
0b : the TCPC
5
DRP_STATUS
0
R
has stopped toggling or
VCONN_POWER_SPT
0
RW
1b : TCPC delivers at least the power indicated in
DEVICE_CAPABILITIES.VCONNPowerSupport
ed
(ROLE_CONTROL.DRP = 00)
1b : the TCPC is toggling
4
DRP_RESULT
0
R
0b : the TCPC is presenting Rp
1b : the TCPC is presenting Rd
If (ROLE_CONTROL.CC2 = Rp) or (DrpResult =
0)
00b : SRC.Open (Open, Rp)
01b : SRC.Ra (below maximum vRa)
10b : SRC.Rd (within the vRd range)
11b : reserved
If (ROLE_CONTROL.CC2 = Rd) or (DrpResult =
1)
00b : SNK.Open (Below maximum vRa)
01b : SNK.Default (Above minimum vRd-
Connect)
10b : SNK.Power1.5 (Above minimum vRd-
0x1D
1
CC_STATUS
3:2
CC2_STATUS
0
R
Connect) Detects Rp 1.5A
11b : SNK.Power3.0 (Above minimum vRd-
Connect) Detects Rp 3.0A
If ROLE_CONTROL.CC2 = Ra, this field is set to
00b
If ROLE_CONTROL.CC2 = Open, this field is set
to 00b
This field always returns 00b if (DrpStatus = 1) or
(POWER_CONTROL.EnableVconn = 1 and
POWER_CONTROL.PlugOrientation = 0).
Otherwise, the returned value depends upon
ROLE_CONTROL.CC2.
Copyright
©
2018 Richtek Technology Corporation. All rights reserved.
is a registered trademark of Richtek Technology Corporation.
DS1730-01 January 2018
www.richtek.com
9
RICHTEK [ RICHTEK TECHNOLOGY CORPORATION ]
