參數(shù)資料
型號: KSZ8842-PMQL-EVAL
廠商: Micrel Inc
文件頁數(shù): 10/119頁
文件大?。?/td> 0K
描述: BOARD EVALUATION KSZ8842-PMQL
標(biāo)準(zhǔn)包裝: 1
主要目的: 接口,以太網(wǎng)控制器(PHY 和 MAC)
嵌入式:
已用 IC / 零件: KSZ8842-PMQL
主要屬性: 2 個(gè)端口,100BASE-TX/10BASE-T
次要屬性: 8/16 位接口,LinkMD 線纜診斷
已供物品:
產(chǎn)品目錄頁面: 1114 (CN2011-ZH PDF)
相關(guān)產(chǎn)品: 576-3348-ND - IC ETHERNET SW 2PORT 100-LFBGA
576-3089-ND - IC ETHERNT SW 2PORT PCI 100LFBGA
576-2121-ND - IC ETHERNET SW 2PORT PCI 128PQFP
576-1513-5-ND - IC SWITCH 10/100 32BIT 128-PQFP
其它名稱: 576-1636
Micrel, Inc.
KSZ8842-PMQL/PMBL
October 2007
107
M9999-100207-1.5
Dynamic MAC Address Table
The Dynamic MAC address is a read only table.
Bit
Default
R/W
Description
71
RO
Data not ready
1 = specifies that the entry is not ready, continue retrying until bit is
set to 0
0 = specifies that the entry is ready
70 – 67
RO
Reserved
66
1
RO
MAC empty
1 = specifies that there is no valid entry in the table
0 = specifies that there are valid entries in the table
65 – 56
00_0000_0000
RO
No of valid entries
Indicates how many valid entries in the table
0x3ff means 1 K entries
0x001 means 2 entries
0x000 and bit 66 = 0 means 1 entry
0x000 and bit 66 = 1 means 0 entry
55 – 54
RO
Time Stamp
Specifies the 2-bit counter for internal aging.
53 – 52
00
RO
Source port
Identifies the source port where FID+MAC is learned:
00, port 1
01, port 2
10, port 3
51 – 48
0x0
RO
FID
Specifies the filter ID.
47 – 0
0x000_0000_0000
RO
MAC Address
Specifies the 48-bit MAC address.
Table 13. Dynamic MAC Address Table Format (1024 Entries)
Example:
Dynamic MAC Address Table Read (read the first entry at indirect address offset 0 and retrieve the MAC table size)
Write to reg. IACR with 0x1800 (set indirect address and trigger a read dynamic MAC table operation)
Then
Read reg. IADR1 (dynamic MAC table bits 71-64) // If bit 71 =1, restart (reread) from this register
Read reg. IADR3 (dynamic MAC table bits 63-48)
Read reg. IADR2 (dynamic MAC table bits 47-32)
Read reg. IADR5 (dynamic MAC table bits 31-16)
Read reg. IADR4 (dynamic MAC table bits 15-0)
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