zSFP/zSFP+ Module Connectors

ZCU670 Evaluation Board User Guide (UG1532)

Document ID
UG1532
Release Date
2022-03-30
Revision
1.0 English

[Figure 1, callout 15]

The ZCU670 board hosts a quad zSFP/zSFP+ connector (J29) that accept zSFP or zSFP+ modules. The connectors are housed within a single 2x2 zSFP cage assembly. The following figure shows the zSFP/zSFP+ module locations within J29.

Figure 1. Quad-zSFP Connector zSFP Locations

The detailed RFSoC connections for the feature described in this section are documented in the ZCU670 board XDC file, referenced in Xilinx Design Constraints.

The following table lists the zSFP+ module control and status connections.

Table 1. zSFP Control and Status Board Connections
zSFP Control/ Status Signal Board Connection
SFP0 J29 LT 1, 2
SFP_TX_FAULT Test Point TP11 High = Fault
Low = Normal Operation
SFP_TX_DISABLE

Jumper J39

Switch Q6 U1.K16

Off = SFP Disabled
On = SFP Enabled
SFP_MOD_DETECT Test Point J12 High = Module not present
Low = Module Present
SFP_RS0 PU R262 / PD R269 PU R262 = Full RX bandwidth
PD R269 = Reduced RX bandwidth
SFP_RS1 PU R263 / PD R264 PU R263 = Full TX bandwidth
PD R264 = Reduced TX bandwidth
SFP_LOS Test Point TP13 High = Loss of receiver signal
Low = Normal operation
SFP1 J29 LL 1, 2
SFP_TX_FAULT Test Point TP14 High = Fault
Low = Normal Operation
SFP_TX_DISABLE

Jumper J44

Switch Q7 U1.K17

Off = SFP Disabled
On = SFP Enabled
SFP_MOD_DETECT Test Point TP15 High = Module not present
Low = Module Present
SFP_RS0 PU R270 / PD R273 PU R270 = Full RX bandwidth
PD R273 = Reduced RX bandwidth
SFP_RS1 PU R271 / PD R274 PU R271 = Full TX bandwidth
PD R274 = Reduced TX bandwidth
SFP_LOS Test Point TP16 High = Loss of receiver signal
Low = Normal operation
SFP2 J29 RT 1, 2
SFP_TX_FAULT Test Point TP5 High = Fault
Low = Normal Operation
SFP_TX_DISABLE

Jumper J32

Switch Q4 U1.K14

Off = SFP Disabled
On = SFP Enabled
SFP_MOD_DETECT Test Point TP6 High = Module not present
Low = Module Present
SFP_RS0 PU R279 / PD R281 PU R279 = Full RX bandwidth
PD R281 = Reduced RX bandwidth
SFP_RS1 PU R280 / PD R282 PU R280 = Full TX bandwidth
PD R282 = Reduced TX bandwidth
SFP_LOS Test Point TP7 High = Loss of receiver signal
Low = Normal operation
SFP3 J29 RL 1, 2
SFP_TX_FAULT Test Point TP8 High = Fault
Low = Normal Operation
SFP_TX_DISABLE

Jumper J35

Switch Q5 U1.K15

Off = SFP Disabled
On = SFP Enabled
SFP_MOD_DETECT Test Point TP9 High = Module not present
Low = Module Present
SFP_RS0 PU R284 / PD R290 PU R284 = Full RX bandwidth
PD R290 = Reduced RX bandwidth
SFP_RS1 PU R285 / PD R291 PU R285 = Full TX bandwidth
PD R291 = Reduced TX bandwidth
SFP_LOS Test Point TP10 High = Loss of receiver signal
Low = Normal operation
  1. The RS0/RS1 PU/PD resistors are not populated. There are pull-down resistors built into the zSFP modules that select the lower bandwidth mode of the module.
  2. BW selection is also available through I2C control.