Table 19: zSFP Control and Status Board Connections (cont'd)
zSFP Control/ Status Signal
Board Connection
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
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
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
Notes:
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.
User I/O
, callout 23, 24, and 25]
The ZCU670 board provides these user and general purpose I/O capabilities:
Chapter 3: Board Component Descriptions
UG1532 (v1.0) March 30, 2022
ZCU670 Board User Guide
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