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USER MANUAL
JetKit-3010
ELMA.COM
EMBEDDED BOARDS
Table 10 - IO Expander IOs for PD controller configuration / indication
Port USB Port Signal
I / O* Default Description
P00 USB-C 1
EN
O
High
Enable signal for PD controller
high – enabled
low – disabled
P01 USB-C 1
CHG
O
High
Charger configuration inputs.
CHG in conjunction with CHG_HI control the
power delivery capability.
Configuration settings see Table 11.
P02 USB-C 1
CHG_HI
O
Low
P03 USB-C 1
FAULT#
I
-
Fault indicator output
low – current-limiting or thermal shutdown
P04 USB-C 1
LD_DET#
I
-
High charging current detected.
Load threshold see Table 11.
P05 USB-C 1
UFP#
I
-
Upstream Facing Port detect
high – Downstream Facing Port / no connection
low – Upstream Facing Port connected
This signal can be used to switch host / OTG
mode.
P06 USB-C 1
POL#
I
-
Polarity detect
high – Standard polarity / no cable connected
low – Flipped cable connected
This signal is used to control the multiplexer for
the super speed lines.
P07 USB-C 1
AUDIO#
I
-
Audio accessory detect**
low – audio accessory detected
P10 USB-C 2
EN
O
High
Enable signal for PD controller
high – enabled
low – disabled
P11 USB-C 2
CHG
O
High
Charger configuration inputs.
CHG in conjunction with CHG_HI control the
power delivery capability.
Configuration settings see Table 11.
P12 USB-C 2
CHG_HI
O
Low
P13 USB-C 2
FAULT#
I
-
Fault indicator output
low – current-limiting or thermal shutdown
P14 USB-C 2
LD_DET#
I
-
High charging current detected.
Load threshold see Table 11.
P15 USB-C 2
UFP#
I
-
Upstream Facing Port detect
high – Downstream Facing Port / no connection
low – Upstream Facing Port connected
This signal can be used to switch host / OTG
mode.
P16 USB-C 2
POL#
I
-
Polarity detect
high – Standard polarity / no cable connected
low – Flipped cable connected
This signal is used to control the multiplexer for
the super speed lines.
P17 USB-C 2
AUDIO#
I
-
Audio accessory detect**
low – audio accessory detected
*Input / Output is seen from IO Expander. PD controller direction is opposite.
**The JetKit-3010 does not support audio accessories.
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