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STUSB1600 数据表(PDF) 31 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) 31 Page - STMicroelectronics

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STUSB1600
I2C register map
69
5.1.5
MONITORING_STATUS_TRANS
Address: 0Fh
Access: RC
Note: this register indicates a bit value change has occurred in the MONITORING_STATUS
register.
5.1.6
MONITORING_STATUS
Address: 10h
Access: RO
Note: this register gives the current status of the VBUS and VCONN voltage monitoring done
respectively on the VBUS_SENSE and VCONN pins.
The default value of the VBUS valid voltage range can be changed in the
VBUS_MONITORING_RANGE_CTRL register during operation.
The VBUS vSafe0V threshold is defined in the VBUS_MONITORING_CTRL register. It is
used in source power role as a Type-C FSM condition to establish a valid device
attachment.
Table 22. MONITORING_STATUS_TRANS register
Bit
Field name
Reset
Description
7:4 Reserved
0000b Do not use
3
VBUS_VALID_TRANS
0b
0b: cleared
1b: transition occurred on VBUS_VALID bit
2
VBUS_VSAFE0V_TRANS
0b
0b: cleared
1b: transition occurred on VBUS_VSAFE0V bit
1
VBUS_PRESENCE_TRANS
0b
0b: cleared
1b: transition occurred on VBUS_PRESENCE bit
0
VCONN_PRESENCE_TRANS
0b
0b: cleared
1b: transition occurred on VCONN_PRESENCE bit
Table 23. MONITORING_STATUS register
Bit
Field name
Reset
Description
7:4
Reserved
0000b
Do not use
3
VBUS_VALID
0b
0b: VBUS is outside valid voltage range
1b: VBUS is within valid voltage range
2
VBUS_VSAFE0V
1b
0b: VBUS is above vSafe0V threshold
1b: VBUS is below VSafe0V threshold
1
VBUS_PRESENCE
0b
0b: VBUS is below UVLO threshold
1b: VBUS is above UVLO threshold
0
VCONN_PRESENCE
0b or 1b
0b: VCONN is below UVLO threshold
1b: VCONN is above UVLO threshold



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