Connection

state

CC1

pin

CC2

pin

Type-C device state

CC_OPERATION_STATUS

register @11h

A_B_SIDE

pin

VCONN

supply

VBUS_EN_SRC

pin

CC_CONNECTION_STATUS

register @0Eh

Debug

accessory

mode

attached

sink role

Rd

≤Ra

OrientedDebug

Accessory.SRC

HiZ

OFF

0

6Dh

≤ Ra

Rd

0

OFF

0

6Dh

Audio

adapter

accessory

mode

attached

Ra

Ra

AudioAccessory

HiZ

OFF

HiZ

81h

The value of the CC1 and CC2 pins is defined from a termination perspective and corresponds to the termination

presented by the connected device. The CC_CONNECTION_STATUS register can report other values than the

one presented in table above. In this table, it reflects the state transitions in Type-C FSM that can be ignored from

the application stand point.

STUSB1702

USB Type-C typical applications

DS12664 - Rev 1

page 23/38