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Pin# Signal Name
Wire
Type
57
I2C_AUX_SCL
Micro
coax
58
I2C_AUX_SDA
Micro
coax
59
S_PRSNT1_L
Micro
coax
60
No
Wire
NVIDIA BlueField-3 DPU User Guide
Detailed Description
The BlueField silicon serves as the I2C bus master on this bus. An I2C EEPROM at I2C address 0x57 needs to
be mounted on the motherboard side to report to the Cabline CA-II Plus interface parameters to the main-
card BlueField DPU silicon, like Cabline CA-II Plus cables length (contact NVIDIA for the format of this
EEPROM). If additional optional I2C slave devices need to be managed by the main-card BlueField DPU
silicon, they need to be included on this I2C bus as well.
The BlueField silicon serves as the I2C bus master on this bus. An I2C EEPROM at I2C address 0x57 needs to
be mounted on the motherboard side to report to the Cabline CA-II Plus interface parameters to the main-
card BlueField DPU silicon, like Cabline CA-II Plus cables length (contact NVIDIA for the format of this
EEPROM). If additional optional I2C slave devices need to be managed by the main-card BlueField DPU
silicon, they need to be included on this I2C bus as well.
Connect this pin to GND
No wires are connected to these pins to ensure they do not interfere with the operation of S_PRSNT2_L for
the detection when the two Cabline harnesses are installed.
| 92
AWG# Pin# on the
other end
38
57
38
58
38
59
60
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