Specifications

36 RA7x/SA7x Pocket Reference Guide
07—Frame Sequence Error
Error Description: There are three transmission error
types that are reported as sequence errors:
• A message continuation frame or message end
frame was decoded before a message start
frame.
• Two message start frames were decoded in a
row.
• Less than two frames, a message start frame
and a message end frame, or more than 63
frames have been decoded before a message
end frame.
FN: A1—grp.frm.seq.—group select frame sequence
error
FN: AB—str.frm.seq.—start frame sequence error
FN: AC—con.frm.seq.—continue frame sequence error
FN: AD—end.frm.seq.—end frame sequence error
Most Probable Cause: ECM, SDI controller, SDI
cable
08—Level 2 Message Checksum Error
Error Description: The last level 1 frame transmitted
as a result of a level 2 command is the message end
frame. The lower eight bits of the end frame contain
a checksum for the entire level 2 message. This error
occurs if the checksum calculated by the drive does
not match the checksum transmitted as part of the
message end frame.
FN: A5—inc.cmd.cksm—incorrect command packet
checksum
Most Probable Cause: ECM, SDI controller, SDI
cable
09—SDI Message Framing Error
Error Description: The upper eight bits of the control
frame did not match one of the nine possible framing
codes as defined in the SDI specification.
FN: A4—inv.frm.code.—invalid frame code
Most Probable Cause: ECM, SDI controller, SDI
cable