10.2.7.26 TCPC USB PHY Control Register

8-bit or 16-bit access to part of this register is permitted.

Name:	TCPC_UPC
Offset:	0xA0
Reset:	0x0000
Property:	Read/Write


Bit	31	30	29	28	27	26	25	24
			BCDETE	BCVSRCE	BCDETSEL	BCIDPSRCE	DMPDFE	DMPDFD
Access			R/W	R/W	R/W	R/W	R/W	R/W
Reset			0	0	0	0	0	0


Bit	23	22	21	20	19	18	17	16
			RDSRC[1:0]			RDTRME	RDSEL[1:0]
Access			R/W	R/W		R/W	R/W	R/W
Reset			0	0		0	0	0


Bit	15	14	13	12	11	10	9	8
			RDIPSEL[1:0]			TCIDCTSEL[2:0]
Access			R/W	R/W		R/W	R/W	R/W
Reset			0	0		0	0	0


Bit	7	6	5	4	3	2	1	0
							TCIDSEL	TCCE
Access							R/W	R/W
Reset							0	0

Bit 29 – BCDETE Battery Charging Detection Enable

Value	Description
0	Battery charging detection is disabled.
1	Battery charging detection is enabled. If BCDETSEL is set to 0, DM VDAT comparator and IDM_SINK current source are enabled, and CHG_DET output can be read in TCPC_UPS.CHGDCP. If BCDETSEL is set to 1, DP VDAT comparator and IDP_SINK current source are enabled, and DCP_DET output can be read in TCPC_UPS.CHGDCP.

Bit 28 – BCVSRCE Battery Charging Voltage Source Enable

Value	Description
0	Battery charging VDP_SRC and VDM_SRC voltage sources are disabled.
1	Battery charging voltage source enable: If BCDETSEL is set to 0, VDP_SRC voltage source is enabled. If BCDETSEL is set to 1, VDM_SRC voltage source is enabled.

Bit 27 – BCDETSEL Battery Charging Detection Selection

Value	Description
0	Battery charging primary detection is selected.
1	Battery charging secondary detection is selected.

Bit 26 – BCIDPSRCE Battery Charging IDP Source Enable

Value	Description
0	Battery charging IDP current source is disabled.
1	Battery charging IDP current source is enabled for data contact detection.

Bit 25 – DMPDFE DM Pull-Down Force Enable

Value	Description
0	DM pull-down is not forced to the active state by the TCPC.
1	DM pull-down is forced to the active state by the TCPC for battery charging data contact detection.

Bit 24 – DMPDFD DM Pull-Down Force Disable

Value	Description
0	DM pull-down is not forced to the inactive state by the TCPC.
1	DM pull-down is forced to the inactive state by the TCPC.

Bits 21:20 – RDSRC[1:0] Type-C Rd Resistor Value Source

Value	Name	Description
0	RDSRC_CFG	Software configuration value RDSEL is selected for Rd pull-down resistor.
1	RDSRC_OTP	OTP value is selected for Rd pull-down resistor.
2	RDSRC_CAL	Calibration value TCPC_CALST.RDCAL is selected for Rd pull-down resistor.
3	RDSRC_DIS	Rd pull-down is disabled.

Bit 18 – RDTRME Type-C Rd Resistor Trim Enable

Value	Description
0	Rd resistor trim is disabled. The Rd value selected in RDSEL can be used for Type-C attach detection.
1	Rd resistor trim is enabled. CC2 is disconnected. RDSEL is enforced for Rd resistor value.

Bits 17:16 – RDSEL[1:0] Type-C Rd Resistor Trim Selection

Value	Name	Description
0	RDSEL_OFF	Rd pull-down is disabled
1	RDSEL_MINUS_10P	Rd pull-down value decreased by 10% is selected
2	RDSEL_DEFAULT	Rd pull-down default value is selected
3	RDSEL_PLUS_10P	Rd pull-down value increased by 10% is selected

Bits 13:12 – RDIPSEL[1:0] Type-C Rd or Ip Pull-up Current Selection

Value	Name	Description
0	IP_OFF	Type-C pull-up current source Ip is off, Rd pull-down is selected
1	IP_0P5	Type-C pull-up current source Ip is advertising 0.5A as V_BUS sourcing capability
2	IP_1P5	Type-C pull-up current source Ip is advertising 1.5A as V_BUS sourcing capability
3	IP_3P0	Type-C pull-up current source Ip is advertising 3.0A as V_BUS sourcing capability

Bits 10:8 – TCIDCTSEL[2:0] Type-C or ID Comparator Threshold Selection

Value	Name	Description
0	THRESHOLD_0	Threshold above VRid_gnd for ID determination or Type-C VRa
1	THRESHOLD_1	Threshold above VRid_c for ID determination or Type-C VRd-USB
2	THRESHOLD_2	Threshold above VRid_b for ID determination or Type-C VRd-1.5
3	THRESHOLD_3	Threshold above VRid_a for ID determination or Type-C VRd
4	THRESHOLD_4	Reserved
5	THRESHOLD_5	Reserved
6	THRESHOLD_6	Reserved
7	THRESHOLD_7	Reserved

Bit 1 – TCIDSEL Type-C or ID Selection

Value	Description
0	CC1 comparator is used for ID detection for OTG or for battery charging. CC1 is connected and CC2 is disconnected.
1	CC1 and CC2 comparators are used to determine the power capability advertised by the facing source.

Bit 0 – TCCE Type-C Cell Enable

Value	Description
0	USB Type-C cell is disabled; CC1 and CC2 are disconnected.
1	USB Type-C cell is enabled.

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