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STUSB1600 数据表(PDF) 22 Page - STMicroelectronics

部件名 STUSB1600
功能描述  Power hubs and docking stations
PDF  69 Pages
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制造商  STMICROELECTRONICS [STMicroelectronics]
网页  http://www.st.com
标志 STMICROELECTRONICS - STMicroelectronics

STUSB1600 数据表(HTML) 22 Page - STMicroelectronics

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Features description
STUSB1600
22/69
DocID028937 Rev 1
3.8.2
Debug accessory mode detection
The STUSB1600 detects a connection to a debug and test system (DTS) when it operates
either in sink power role or in source power role. The debug accessory detection is
advertised by the DEBUG1 and DEBUG2 pins as well as through the
CC_ATTACHED_MODE bits of the I2C register CC_CONNECTION_STATUS (see
Section 5.1: Register description).
•
In sink power role, a debug accessory device is detected when both the CC1 and CC2
pins are pulled up by an Rp resistor from the connected device. The voltage levels on
the CC1 and CC2 pins give the orientation and current capability as described in the
table below. The DEBUG1 pin is asserted to advertise the DTS detection and the
A_B_SIDE pin indicates the orientation of the connection. The current capability of the
DTS is given through the SINK_POWER_STATE bits of the I2C register
CC_OPERATION_STATUS (see Section 5.1: Register description).
Table 10. Orientation and current capability detection in sink power role
#
CC1 pin
(CC2 pin)
CC2 pin
(CC1 pin)
Charging
current
configuration
A_B_SIDE pin
CC1/CC2
(CC2/CC1)
Current capability state
SINK_POWER_STATE
bit values
1
Rp 3A
Rp 1.5A
Default
HiZ (0)
PowerDefault.SNK (source
supplies default USB
current)
2
Rp 1.5A
Rp default
1.5 A
HiZ (0)
Power1.5.SNK (source
supplies 1.5 A USB Type-C
current)
3
Rp 3A
Rp default
3.0 A
HiZ (0)
Power3.0.SNK (source
supplies 3.0 A USB Type-C
current)
4
Rp
def/1.5A/3A
Rp
def/1.5A/3A
Default
HiZ (HiZ)
PowerDefault.SNK (source
supplies default USB
current)



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