L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 219
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L-ET4148-50C-DB
Manufacturer Part Number
L-ET4148-50C-DB
Description
Manufacturer
LSI
Datasheet
1.L-ET4148-50C-DB.pdf
(298 pages)
Specifications of L-ET4148-50C-DB
Lead Free Status / RoHS Status
Supplier Unconfirmed
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Preliminary Data Sheet
April 2006
Appendix A: Registers
Rx_Length_Histogram
Table 304. Rx_Length_Histogram Field Parameters (continued)
Statistics counters roll over from their maximum count to zero without warning or indication that a rollover has
occurred. It is expected that the supervisor sample these counters often and use the delta from a previous sample
to the current sample to determine the overall count delta. If the current sample has a smaller value than the previ-
ous sample (indicating a rollover), then 2
delta to determine the actual delta. All statistics counters’ widths are scaled to allow for sampling by the supervisor
ten times per second without risk of missing a rollover event.
Agere Systems Inc.
rx_256_511_byte_packets[21:0]
rx_512_1023_byte_packets[21:0]
rx_1024_1518_byte_packets[21:0]
rx_1519_1522_byte_packets[21:0]
rx_jumbo_packets[21:0]
rx_runt_packets[21:0]
rx_oversized_packets[21:0]
Field Name
REFERENCE
(continued)
(continued)
PORT
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
XG1
Figure 233. Port Numbering Scheme
49
n
XG0
(where n is the number of bits in the statistics counter) is added to the
48
Agere Systems - Proprietary
Offset = 1600.10
Offset = 1604.10
Instances = 50
Instances = 50
Instances = 50
Instances = 50
Instances = 50
Instances = 50
Instances = 50
Offset = 12.10
Offset = 16.10
Offset = 20.10
Offset = 24.10
Offset = 28.10
PORT NUMBERING SCHEME
Spacing = 32
Spacing = 32
Spacing = 32
Spacing = 32
Spacing = 32
Mode = R/W
Mode = R/W
Mode = R/W
Mode = R/W
Mode = R/W
Mode = R/W
Mode = R/W
Parameters
Spacing = 8
Spacing = 8
G47
47
G46
46
G = 10/100/1000 Mbits/s PORT
XG = 10 Gbits/s PORT
SU = SUPERVISOR
G45
45
G44
44
Packets of all types received without errors
whose overall length is from 256 to 511 bytes.
Packets of all types received without errors
whose overall length is from 512 to 1,023 bytes.
Packets of all types received without errors
whose overall length is from 1,024 to
1,518 bytes.
Packets of all types received without errors
whose overall length is from 1,519 to
1,522 bytes.
Packets of all types received without errors
whose overall length is greater than 1,522 bytes
and less than 16,384 bytes.
Packets of all types received without errors
whose overall length is less than 64 bytes.
Packets of all types whose overall length is
greater than or equal to 16,384 bytes.
G3
3
G2
2
Description
G1
1
G0
0
ET4148-50
219
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