Instruction Manual

Logic Functions - Book 1
MODCELL SERIAL COMMUNICATION BLOCK
4-26
08 Message Check Error (MSGCHKS).................................................................................. CWR
This diagnostic checks if a received message can be processed by doing a Cyclical
Redundancy Check (CRC).
ENABLE 0 Diagnostic error is not suppressed and errors are reported to the
System Event block. The error message is reported as “MESSAGE
CHECK ERROR.” This indicates that a received message could not
be processed because it failed the CRC check.
SUPPRESS 1 Diagnostic error is suppressed. Acknowledgement status remains
clear.
09
Message Check Error Unacked (MSGCHKU) .................................................................– WR
If the message check diagnostic is enabled, this status indicates if the diagnostic is or is not
unacknowledged. The status can be acknowledged or read as follows.
NO 0 Diagnostic error is acknowledged.
YES 1 Diagnostic error is unacknowledged.
10 Parity Error (PARS) ........................................................................................................... CWR
This diagnostic checks for parity errors in received messages.
ENABLE 0 Diagnostic error is not suppressed and errors are reported to the
System Event block. The error message is reported as “PARITY
ERROR.” This indicates that a parity error was detected for a
received byte. The message is discarded.
SUPPRESS 1 Diagnostic error is suppressed. Acknowledgement status remains
clear.
11
Parity Error Unacked (PARU)...........................................................................................– WR
If the parity error diagnostic is enabled, this status indicates if the diagnostic is or is not
unacknowledged. The status can be acknowledged or read as follows.
NO 0 Diagnostic error is acknowledged.
YES 1 Diagnostic error is unacknowledged.
12 Break Error (BRKS) ........................................................................................................... CWR
This diagnostic checks for a break sequence in the received message as detected by the
68032.
ENABLE 0 Diagnostic error is not suppressed and errors are reported to the
System Event block. The error message is reported as “BREAK
ERROR.” This indicates that a break sequence was detected (a
character with zero value and framing error was received) by the
68032 for a received byte. The message is discarded.
SUPPRESS 1 Diagnostic error is suppressed. Acknowledgement status remains
clear.
13
Break Error Unacked (BRKU)...........................................................................................– WR
If the break error diagnostic is enabled, this status indicates if the diagnostic is or is not
unacknowledged. The status can be acknowledged or read as follows.
NO 0 Diagnostic error is acknowledged.
YES 1 Diagnostic error is unacknowledged.