fido2100 3-Port Industrial Ethernet DLR Switch with IEEE1588
Data Sheet
April 10, 2013
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P2RxGrpFrmCnt: This 16-bit counter reflects multicast and broadcast frames
received without errors on port 2.
P1RxUniFrmCnt: This 16-bit counter reflects unicast frames received without
errors on port 1.
P2RxUniFrmCnt: This 16-bit counter reflects unicast frames received without
errors on port 2.
P1RxBytCnt: This 32-bit counter reflects byte count of unicast, multicast and
broadcast frames received without errors on port 1. Since this register may be
updated while the reads are under progress, this counter must be read twice. Only
when two successive reads produce same result should the value be used.
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P2RxBytCnt: This 32-bit counter reflects byte count of unicast, multicast and
broadcast frames received without errors on port 2. Since this register may be
updated while the reads are under progress, this counter must be read twice. Only
when two successive reads produce same result should the value be used.
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P1RxLrgFrmCnt: This 16-bit counter reflects frames larger than 1522 bytes
including CRC received on port 1. Such frames are not IEEE 802.3 compliant.
P2RxLrgFrmCnt: This 16-bit counter reflects frames larger than 1522 bytes
including CRC received on port 2. Such frames are not IEEE 802.3 compliant.
P1RxAlnFrmCnt: This 16-bit counter reflects frames with alignment error i.e. non-
integral number of bytes received on port 1.
P2RxAlnFrmCnt: This 16-bit counter reflects frames with alignment error i.e. non-
integral number of bytes received on port 2.
P1RxFcsFrmCnt: This 16-bit counter reflects frames with frame check sequence
(CRC) error received on port 1.
P2RxFcsFrmCnt: This 16-bit counter reflects frames with frame check sequence
(CRC) error received on port 2.
P1RxErrFrmCnt: This 16-bit counter reflects frames with other errors including
frames shorter than 64 bytes received on port 1.
P2RxErrFrmCnt: This 16-bit counter reflects frames with other errors including
frames shorter than 64 bytes received on port 2.
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