參數(shù)資料
型號(hào): KSZ8842-16MQL-EVAL
廠商: Micrel Inc
文件頁數(shù): 25/141頁
文件大?。?/td> 0K
描述: BOARD EVALUATION KSZ8842-16MQL
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: KSZ8842-16MQL
主要屬性: 2 個(gè)端口,100BASE-TX/10BASE-T,管理型
次要屬性: 8/16 位接口,LinkMD 線纜診斷
已供物品: 板,CD,文檔,電源
產(chǎn)品目錄頁面: 1114 (CN2011-ZH PDF)
相關(guān)產(chǎn)品: 576-3076-ND - IC MAC CTLR 2PORT ETH 100-LFBGA
KSZ8842-32MQLA6-ND - IC SWITCH 10/100 32BIT 128PQFP
576-1479-ND - IC SWITCH 10/100 32BIT 128PQFP
576-1478-5-ND - IC SWITCH 10/100 16BIT 128PQFP
其它名稱: 576-1634
Micrel, Inc.
KSZ8842-16/32 MQL/MVL/MVLI/MBL
October 2007
120
M9999-102207-1.9
Dynamic MAC Address Table
The Dynamic MAC address is a read only table.
Bit
Default Value
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
0x000
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
0x0000_0000_
0000
RO
MAC Address
Specifies the 48-bit MAC address.
Table 19. Dynamic MAC Address Table Format (1024 Entries)
Dynamic MAC Address Lookup 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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