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RMON Support
MSC8113 Reference Manual, Rev. 0
Freescale Semiconductor
25-23
25.8
RMON Support
The Ethernet controller automatically gathers network statistics required for RMON without
needing to receive all addresses. The following are supported:
RMON MIB group1
RMON MIB group2
RMON MIB group 3
RMON MIB group 9
RMON MIB2
802.3 Ethernet MIB
For RMON statistics and their corresponding counters, see Section 25.17.8, RMON Management
Information Base (MIB), on page 25-105.
25.9
Frame Recognition
The Ethernet controller performs frame recognition in two ways: pattern matching or destination
address. A frame can be rejected or accepted on the basis of the outcome of destination address
filtering, pattern matching filtering, or both.
25.9.1 Pattern Matching Recognition
You can program the Ethernet controller to filter received frames based on pattern matches
within the first 256 bytes of the frame. Pattern matches are used to accept or reject a frame,
and/or to perform special processing of a frame if an address match is detected. When the
controller matches a pattern, it examines the associated attributes and rejects, accepts, or
conditionally accepts a frame. Conditional acceptance occurs for a pattern match in which the
accept decode (PCNTRLn[PMC]) is 10 and the continue search enable bit, PCNTRLn[CSE], is
also set. You can program the Ethernet controller to continue searching past a successful pattern
match by setting PCNTRLn[CSE]. However, once a sample pattern is not matched, the frame is
discarded immediately, regardless of the PCNTRLn[CSE] value.
Figure 25-17 shows a flowchart for the frame acceptance/rejection process based on pattern
matching. For an incoming frame, the Ethernet controller first searches for a pattern match from
preselected patterns. Upon a match, the logic determines whether the continue search enable
PCNTRLn[CSE] bit is set. If this bit is not set, the frame is accepted and the Ethernet controller
takes the action indicated by the corresponding attributes register (see the PATTRBn register on
page 25-135). If this bit is set, the Ethernet controller continues to search for the next pattern
match. If it does not match the pattern, the controller rejects the frame. If it finds a pattern match
with CSE cleared, it accepts the frame without any further search. If a subsequent pattern match
is found but CSE is set, the search continues. This process continues until the end of frame (EOF)
or until the first 256 bytes are received.
Summary of Contents for MSC8113
Page 1: ...MSC8113 Reference Manual Tri Core 16 Bit Digital Signal Processor MSC8113RM Rev 0 May 2008 ...
Page 20: ...MSC8113 Reference Manual Rev 0 xx Freescale Semiconductor Contents ...
Page 28: ...MSC8113 Reference Manual Rev 0 xxviii Freescale Semiconductor ...
Page 56: ...MSC8113 Reference Manual Rev 0 1 28 Freescale Semiconductor MSC8113 Overview ...
Page 76: ...MSC8113 Reference Manual Rev 0 2 20 Freescale Semiconductor SC140 Core Overview ...
Page 134: ...MSC8113 Reference Manual Rev 0 4 30 Freescale Semiconductor System Interface Unit SIU ...
Page 168: ...MSC8113 Reference Manual Rev 0 6 18 Freescale Semiconductor Boot Program ...
Page 180: ...MSC8113 Reference Manual Rev 0 7 12 Freescale Semiconductor Clocks ...
Page 260: ...MSC8113 Reference Manual Rev 0 8 80 Freescale Semiconductor Memory Map ...
Page 300: ...MSC8113 Reference Manual Rev 0 9 40 Freescale Semiconductor Extended Core ...
Page 304: ...MSC8113 Reference Manual Rev 0 10 4 Freescale Semiconductor MQBus and M2 Memory ...
Page 308: ...MSC8113 Reference Manual Rev 0 11 4 Freescale Semiconductor SQBus ...
Page 590: ...MSC8113 Reference Manual Rev 0 17 46 Freescale Semiconductor Interrupt Processing ...
Page 614: ...MSC8113 Reference Manual Rev 0 18 24 Freescale Semiconductor Debugging ...
Page 622: ...MSC8113 Reference Manual Rev 0 19 8 Freescale Semiconductor Internal Peripheral Bus IPBus ...
Page 724: ...MSC8113 Reference Manual Rev 0 21 32 Freescale Semiconductor UART ...
Page 920: ...MSC8113 Reference Manual Rev 0 25 150 Freescale Semiconductor Ethernet Controller ...
Page 1171: ...MSC8113 Reference Manual Rev 0 Freescale Semiconductor C 61 EF wait_rts P 01077FFC 9F rts 71 ...
Page 1172: ...MSC8113 Reference Manual Rev 0 C 62 Freescale Semiconductor MSC8113 Boot Code ...
Page 1202: ...MSC8113 Reference Manual Rev 0 Index 30 Freescale Semiconductor Index ...