參數(shù)資料
型號: KSZ8893FQL-FX
廠商: Micrel Inc
文件頁數(shù): 3/117頁
文件大?。?/td> 0K
描述: IC SWITCH ETH 3PORT 128-PQFP
標(biāo)準(zhǔn)包裝: 66
控制器類型: 以太網(wǎng)開關(guān)控制器
接口: MII,RMII,SNI
電源電壓: 3.1 V ~ 3.5 V
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應(yīng)商設(shè)備封裝: 128-PQFP(14x20)
包裝: 托盤
產(chǎn)品目錄頁面: 1081 (CN2011-ZH PDF)
配用: 576-1603-ND - EVAL KIT EXPERIMENTAL KSZ8893MQL
其它名稱: 576-3273
Micrel, Inc.
KSZ8893FQL
October 2007
100
M9999-101607-1.3
Dynamic MAC Address Table
The KSZ8893FQL maintains the dynamic MAC address table. Read access is allowed only.
Bit
Name
R/W
Description
Default
71
Data Not Ready
RO
1 = Entry is not ready, continue retrying until this bit is
set to 0
0 = Entry is ready
70-67
Reserved
RO
Reserved
66
MAC Empty
RO
1 = There is no valid entry in the table
0 = There are valid entries in the table
1
65-56
No of Valid Entries
RO
Indicates how many valid entries in the table
0x3ff means 1K entries
0x001 means 2 entries
0x000 and bit 66 = 0 means 1 entry
0x000 and bit 66 = 1 means 0 entry
00_0000_0000
55-54
Time Stamp
RO
2 bits counter for internal aging
53-52
Source Port
RO
The source port where FID+MAC is learned
00 : port 1
01 : port 2
10 : port 3
00
51-48
FID
RO
Filter ID
0x0
47-0
MAC Address
RO
48-bit MAC Address
0x0000_0000_0000
Table 23. Format of Dynamic MAC Address Table (1K Entries)
Example:
Dynamic MAC Address Table Read (read the 1
st entry and retrieve the MAC table size)
Write to reg. 121 (0x79) with 0x18
// Read dynamic table selected
Write to reg. 122 (0x7A) with 0x00
// Trigger the read operation
Then,
Read reg. 123 (0x7B), bit [7]
// if bit 7 = 1, restart (reread) from this register
dynamic table bits [66:64]
Read reg. 124 (0x7C), dynamic table bits [63:56]
Read reg. 125 (0x7D), dynamic table bits [55:48]
Read reg. 126 (0x7E), dynamic table bits [47:40]
Read reg. 127 (0x7F), dynamic table bits [39:32]
Read reg. 128 (0x80), dynamic table bits [31:24]
Read reg. 129 (0x81), dynamic table bits [23:16]
Read reg. 130 (0x82), dynamic table bits [15:8]
Read reg. 131 (0x83), dynamic table bits [7:0]
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