PM7384 FREEDM-84P672
DATA SHEET
PMC-1990445
ISSUE 5
FRAME ENGINE AND DATA LINK MANAGER 84P672
high, receipt of a packet that is shorter than 32 bits (CRC-CCITT, Unspecified
CRC or no CRC) or 48 bits (CRC-32) will cause the PMON Configurable
Accumulator #1 register to increment. Small packet errors are ignored when
RSPE1EN is set low.
RFCSE1EN:
The receive frame check sequence error accumulate enable bit (RFCSE1EN)
enables counting of receive FCS error events. When RFCSE1EN is set high,
a mismatch between the received FCS code and the computed CRC residue
will cause the PMON Configurable Accumulator #1 register to increment.
Receive frame check sequence errors are ignored when RFCSE1EN is set
low.
RABRT1EN:
The receive abort accumulate enable bit (RABRT1EN) enables counting of
receive HDLC abort events. When RABRT1EN is set high, receipt of an
abort code (at least 7 contiguous 1's) will cause the PMON Configurable
Accumulator #1 register to increment. Receive aborts are ignored when
RABRT1EN is set low.
RLENE1EN:
The receive packet length error accumulate enable bit (RLENE1EN) enables
counting of receive packet length error events. When RLENE1EN is set high,
receipt of a packet that is longer than the programmable maximum or of a
packet that in not octet aligned will cause the PMON Configurable
Accumulator #1 register to increment. (Receipt of a packet that is both too
long and not octet aligned results in only one increment.) Receive packet
length errors are ignored when RLENE1EN is set low.
RP1EN:
The receive packet enable bit (RP1EN) enables counting of receive error-free
packets. When RP1EN is set high, receipt of an error-free packet will cause
the PMON Configurable Accumulator #1 register to increment. Receive error-
free packets are ignored when RP1EN is set low.
TABRT1EN:
The transmit abort accumulate enable bit (TABRT1EN) enables counting of
transmit HDLC abort events. When TABRT1EN is set high, insertion of an
abort in the outgoing stream will cause the PMON Configurable Accumulator
#1 register to increment. Transmit aborts are ignored when TABRT1EN is set
low.
PROPRIETARY AND CONFIDENTIAL TO PMC-SIERRA, INC., AND FOR ITS CUSTOMERS’ INTERNAL USE
102
PMC [ PMC-SIERRA, INC ]
