hbwhelp@micrel.com or (408) 955-1690 Write to reg. 11" />
參數(shù)資料
型號: KSZ8993F
廠商: Micrel Inc
文件頁數(shù): 85/100頁
文件大?。?/td> 0K
描述: IC CONV MED 10/100 3PORT 128PQFP
標準包裝: 66
系列: *
類型: *
應用: *
安裝類型: 表面貼裝
封裝/外殼: 128-BFQFP
供應商設備封裝: 128-PQFP(14x20)
包裝: 散裝
產(chǎn)品目錄頁面: 1081 (CN2011-ZH PDF)
其它名稱: 576-1033
Micrel, Inc.
KS8993F/FL
June 2009
85
M9999-062509
hbwhelp@micrel.com or (408) 955-1690
Write to reg. 110 with 0x1d (read MIB counter selected)
Write to reg. 111 with 0x00 (trigger the read operation)
Then
Read reg. 119 (counter value 15-8)
Read reg. 120 (counter value 7-0)
NOTES:
1.
Both “Per Port” and “All Port Dropped Packet” MIB Counters do not indicate overflow. The application must
keep track of overflow conditions for these counters.
2.
“All Port Dropped Packet” MIB Counters do not indicate if count is valid. The application must keep track of
valid conditions for these counters.
3.
To read out all the counters, the best performance over the SPI bus is (160+3)*8*200 = 260 ms, where there
are 160 registers, 3 overheads, 8 clocks per access, at 5 MHz. In the heaviest condition, the counters will
overflow in 2 minutes. It is recommended that the software read all the counters at least every 30 seconds.
4.
A high performance SPI master is recommended to prevent counters overflow.
5.
“Per Port” MIB Counters are designed as “read clear”. These counters will be cleared after they are read.
6.
“All Port Dropped Packet” MIB counters are not cleared after they are read.
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KSZ8993F-A1 功能描述:IC CONV MED 10/100 3PORT 128PQFP RoHS:是 類別:集成電路 (IC) >> 專用 IC 系列:* 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:1 系列:- 類型:調(diào)幀器 應用:數(shù)據(jù)傳輸 安裝類型:表面貼裝 封裝/外殼:400-BBGA 供應商設備封裝:400-PBGA(27x27) 包裝:散裝
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