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Release Note
C0FE0036_xxxx.sff

MPI Version
FPGA Version
03.02.00
Production Release
C0FE0036_0344

  Table of Contents
     
    Changes and Bug Fixes
     

C0FE0036_0344
     Block nodeAlarm to the drive if a driveFault is occurring - Bug Fix - FP285

C0FE0036_0341
     sqMac rxMiiBuffer multiple packets - General Change - FP263
     New FPGA C0FE0036 - General Change - FP243

C0FE0036_0340
     New BranchRev Register - New Feature - FP231


C0FE0036_0344

  Block nodeAlarm to the drive if a driveFault is occurring
    Reference Number: FP 285
    Type: Bug Fix
    FPGA Version: 0x0344
   

Problem/Cause:
If nodeAlarm is configured to look at the axis fault, and the axis fault is configured to look at driveFault, a race condition would occur making both nodeAlarm and driveFault unclearable. This issue existed in all FPGA versions prior to x0344.

   

Fix/Solution:
Modified FPGA code for versions x0344 and later. If a driveFault is occurring, nodeAlarm is not written to the drive. This allows for both nodeAlarm and driveFault to be cleared. No software changes are required.

 

C0FE0036_0341

  sqMac rxMiiBuffer multiple packets
    Reference Number: FP 263
    Type: General Change
    FPGA Version: 0x0341
   

Description:
Add support for multiple packets to the rxMiiBuffer. This improves tolerance to network jitter. Prior to version x0341, the rxMiiBuffer could absorb up to 32 clocks (1.28 µS) of delay for a single packet, but only 8 clocks for multiple packets with minimum spacing. This change is required to meet theoretical worst-case network jitter in large networks (32 nodes). The improvement may also help at network startup, since the node's PLL phase error is larger than normal (as the PLL pulls into nominal lock). No software changes are required.


  New FPGA C0FE0036
    Reference Number: FP 243
    Type: General Change
    FPGA Version: 0x0341
   

Description:
Release new FPGA type C0FE0036_0341.sff.

 

C0FE0036_0340

  New BranchRev Register
    Reference Number: FP 231
    Type: New Feature
    FPGA Version: 0x0340
   

Description:
Add BranchRev register. This extends the existing 16 bits of FPGA version number with 8 bits of branch and 8 bits of revision ID.


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