L-ET4148-50C-DB LSI, L-ET4148-50C-DB Datasheet - Page 163
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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
Agere Systems Inc.
Appendix A: Registers
Packet_Buffer_Free_Buffer_Count_Odd
Description: Provides a real-time indication of the number of free buffers.
Table 213. Packet_Buffer_Free_Buffer_Count_Odd Register Parameters
Table 214. Packet_Buffer_Free_Buffer_Count_Odd Field Parameters
This register provides a real-time indication of the number of buffers that reside on the free list. Smaller numbers
read here indicate greater levels of congestion.
This register corresponds to all odd-numbered buffers.
Base Address
Register Size
Register Instances
Register Spacing
Record Size
Record Instances
Record Spacing
free_buffer_count_odd[12:0]
0
31 30 29 28 27 26 25 24 23 22 21 20 19 18 17 16 15 14 13 12 11 10 9
0
Field Name
Parameter
1
2
Figure 157. Packet_Buffer_Free_Buffer_Count_Odd Register Diagram
3
4
5
6
Single-Chip 48 x 1 Gbit/s + 2 x 10 Gbits/s Layer 2+ Ethernet Switch
(continued)
7
8
9
Agere Systems - Proprietary
Instances = 1
10
Offset = 0.19
Parameters
Mode = WO
11
0x000c_bb88
12
Value
13
NA
NA
4
1
4
1
14
15
16
The number of buffers available for allocation to
storage.
17
18
19
20
21
free_buffer_count_odd[12:0]
22
Description
23
8
24
7
25
6
26
5
27
4
28
3
ET4148-50
29
2
30
1
31
0
163
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