Xilinx VCK190 Series User Manual page 54

The following table lists the zSFP+ module control and status connections.
Table 19: zSFP0- zSFP1 Module Control and Status Connections
zSFP Control/
Status Signal
SFP0_TX_FAULT
SFP0_TX_DISABLE
SFP0_MOD_DETECT
SFP0_RS0 1
1
SFP0_RS1
SFP0_LOS
SFP1_TX_FAULT
SFP1_TX_DISABLE
SFP1_MOD_DETECT
1
SFP1_RS0
1
SFP1_RS1
SFP1_LOS
Notes:
1. The RS0/RS1 PU/PD resistors are not populated. There are pull-down resistors built into the SFP/zSFP modules that
select the lower bandwidth mode of the module.
For additional information about the enhanced SFP+ module, see the SFF-8431 specification at
the SNIA website.
The zSFP connector I2C interfaces are connected to the I2C bus via the TCA9548 I2C
multiplexer U214 (see
details).
The detailed ACAP connections for the feature described in this section are documented in the
VCK190 board XDC file, referenced in
UG1366 (v1.0) January 7, 2021
VCK190 Board User Guide
Board Connection
High = Fault
Test point J276
Low = Normal operation
Off = SFP disabled
Jumper J35
On = SFP enabled
High = Module not present
Test point J31
Low = Module present
PU R25 = Full RX bandwidth
PU R1420/PD R1426
PD R30 = Reduced RX bandwidth
PU R227 = Full RX bandwidth
PU R1421/PD R1427
PD R142 = Reduced RX bandwidth
High = Loss of receiver signal
Test point J33
Low = Normal operation
High = Fault
Test point J30
Low = Normal operation
Off = SFP disabled
Jumper J32
On = SFP enabled
High = Module not present
Test point J277
Low = Module present
PU R182 = Full RX bandwidth
PU R1428/PD R1431
PD R190 = Reduced RX bandwidth
PU R185 = Full RX bandwidth
PU R1429/PD R1432
PD R202 = Reduced RX bandwidth
High = Loss of receiver signal
Test point J278
Low = Normal operation
PMC MIO[46:47] I2C0 Bus
Appendix B: Xilinx Design
Chapter 3: Board Component Descriptions
and PMC MIO[44:45] I2C1 Bus
Constraints.
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zSFP
Module
zSFP0 J287
lower
zSFP1 J287
upper
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