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S-SGPIO Header
The Serial Link General Purpose Input/Output (S-SGPIO1) header is used to communicate
with the enclosure management chip on the front panel.
Software-Defined Pins (SDP)
JSDP1, JSDP2, and JSDP3 are software-defined pins that can be used to support IEEE
1588 auxiliary devices and other hardware or software-control purposes. These pins can be
configured to function as standard inputs or General-Purpose Interrupt (GPI) input or output
pins. In order for pins to function as GPI, they must be configured as inputs and enabled by
the PCH Ethernet or I350.
SGPIO Header
Pin Definitions
Pin#
Definition
Pin#
Definition
1
NC
2
NC
3
Ground
4
DATA Out
5
Load
6
Ground
7
Clock
8
NC
JSDP1
Pin Definitions
Pin#
Definition
1
X722_SDP1_1
2
X722_SDP1_0
3
X722_SDP0_1
4
X722_SDP0_0
5
Ground
JSDP2
Pin Definitions
Pin#
Definition
1
10G_P3_LOW_SPEED
2
X722_SDP3_0
3
10G_P2_LOW_SPEED
4
X722_SDP2_0
5
Ground
JSDP3
Pin Definitions
Pin#
Definition
1
I350_SDP0_0
2
I350_SDP0_1
3
I350_SDP0_2
4
I350_SDP0_3
5
Ground
49
Chapter 3: Motherboard Connections
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