70.7.27 TCPC USB PHY Status Register

Name: TCPC_UPS
Offset: 0xA4
Reset: 0x0000
Property: Read-only

Bit 3130292827262524 
          
Access  
Reset  
Bit 2322212019181716 
          
Access  
Reset  
Bit 15141312111098 
          
Access  
Reset  
Bit 76543210 
    CC2RDTCC1IDCHGDCPDMDP 
Access RRRRR 
Reset 00000 

Bit 4 – CC2RDT Type-C CC2 Comparator or Rd Trim comparator

Comparator output for Type-C CC2 voltage detection or for Rd trimming as selected via TCPC_UPC.RDSEL.

ValueDescription
0 CC2 output is low. Voltage is below the selected TCUPC.TCIDCTSEL threshold for Power Source Detection at Sink and is above the selected TCPC_UPC.TCIDCTSEL threshold for Sink Detection at Power Source.
1 CC2 output is high. Voltage is above the selected TCUPC.TCIDCTSEL threshold for Power Source Detection at Sink and is below the selected TCPC_UPC.TCIDCTSEL threshold for Sink Detection at Power Source.

Bit 3 – CC1ID Type-C CC1 Comparator or ID comparator

Comparator output for Type-C CC1 voltage detection.

ValueDescription
0 CC1 output is low. Voltage is below the selected TCPC_UPC.TCIDCTSEL threshold for Power Source Detection at Sink and is above the selected TCPC_UPC.TCIDCTSEL threshold for Sink Detection at Power Source.
1 CC1 output is high. Voltage is above the selected TCPC_UPC.TCIDCTSEL threshold for Power Source Detection at Sink and is below the selected TCPC_UPC.TCIDCTSEL threshold for Sink Detection at Power Source.

Bit 2 – CHGDCP Charging Port Detection, Dedicated Charging Port Detection

Comparator output of the primary or secondary detection as selected via TCPC_UPC.BCDETSEL, valid if TCPC_UPC.BCDETE has been set.
ValueDescription
0

No charging port detected

• If TCPC_UPC.BCDETSEL is set to 0, the primary detection CHG_DET output is low.

• If TCPC_UPC.BCDETSEL is set to 1, the secondary detection DCP_DET output is low.
1

Charging port detected

• If TCPC_UPC.BCDETSEL is set to 0, the primary detection CHG_DET output is high.

• If TCPC_UPC.BCDETSEL is set to 1, the secondary detection DCP_DET output is high.

Bit 1 – DM USB Differential line Minus

USB DM line state, used in the battery charger type determination to distinguish ACA with FS B-device from ACA with LS B-device.
ValueDescription
0

DM is low.
1

DM is high.

Bit 0 – DP USB Differential line Plus

USB DP line state, used for the battery charging data contact detect and ACA-Dock type determination.
ValueDescription
0

DP is low.
1

DP is high.