參數(shù)資料
型號(hào)： KSZ8995XA
廠商： Micrel Inc
文件頁(yè)數(shù)： 19/51頁(yè)
文件大小： 0K
描述： IC SWITCH 10/100 5PORT 128PQFP
標(biāo)準(zhǔn)包裝： 66
系列： *
類(lèi)型： *
應(yīng)用： *
安裝類(lèi)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(pán)
產(chǎn)品目錄頁(yè)面： 1081 (CN2011-ZH PDF)
配用： 576-1642-ND - BOARD EVALUATION FOR KSZ8995XA
其它名稱(chēng)： 576-1042
KS8995XA
Micrel, Inc.
M9999-051305
26
May 2005
The KS8995XA can classify tagged packets using the 802.1p tag-based priority. In this prioritization scheme, the user can
enable the 802.1p classification on a per port basis in bit 5 of registers 0x10, 0x20, 0x30, 0x40 and 0x50 for ports 1, 2, 3, 4,
and 5, respectively. Then the user specifies the 802.1p base priority in register 0x02, bits [6-4]. When a tagged packet is
received, the KS8995XA examines the 3 bit 802.1p priority field shown in Figure 8. These 3 bits are compared against the base
priority. The prioritization policy is as follows:
Comparison
Priority
802.1p Priority ≥ Base Priority
High
802.1p Priority < Base Priority
Low
Table 4. 802.1p Priority
Preamble
DA
SA
TCI
86
6
4
Length
LLC
Data
CRC
246-1500
4
1
Tagged Packet Type
(8100 for Ethernet)
802.1p
CFI
VLAN ID
Bytes
Bits
16
3
12
Figure 8. 802.3 Tagged Packet
V
IP
Siz
ader
46
4
Preamble
DA
SA
Tag
86
6
Type
Data
CRC
246-1500
4
Bytes
Bits
er.
0x4
DiffServ
Res.
2
He
e
42
Figure 9. IPv4 Packet
In order to support QoS from end-to-end in a network, the KS8995XA can also classify packets based on the IPv4 DiffServ
field shown in Figure 9.
The DiffServ field consists of 6 bits, which can be used to specify 64 code points. The KS8995XA provides 64 bits (DSCP[63:0])
in 8 registers (0x60 to 0x67), in which the user specifies the priority of each of the 64 code points. The DiffServ classification
is enabled on a per port basis in bit 6 of registers 0x10, 0x20, 0x30, 0x40 and 0x50 for ports 1, 2, 3, 4, and 5, respectively. If
the DiffServ classification is enabled on a port, the KS8995XA will decode the IPv4 DiffServ field and look at the user defined
code point bit to determine if the packet is high priority or low priority. If the code point is a ‘1’, the packet is high priority. If the
code point is ‘0’, the packet is low priority.
相關(guān)PDF資料
PDF描述
EMM36DKKN CONN EDGECARD 72POS .156 WW
EMM36DKKH CONN EDGECARD 72POS .156 WW
GSA50DTMZ-S273 CONN EDGECARD 100PS R/A .125 SLD
GMA50DTMZ-S273 CONN EDGECARD 100PS R/A .125 SLD
GSA50DTBZ-S273 CONN EDGECARD 100PS R/A .125 SLD
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
KSZ8995XA4 功能描述:IC SWITCH 5-PORT 10/100 128PQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 專(zhuān)用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類(lèi)型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
KSZ8995XAB3 功能描述:IC SWITCH 5-PORT 10/100 128PQFP RoHS:是 類(lèi)別:集成電路 (IC) >> 專(zhuān)用 IC 系列:* 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:調(diào)幀器 應(yīng)用:數(shù)據(jù)傳輸 安裝類(lèi)型:表面貼裝 封裝/外殼:400-BBGA 供應(yīng)商設(shè)備封裝:400-PBGA（27x27） 包裝:散裝
KSZ8995XA-EVAL 功能描述:以太網(wǎng)開(kāi)發(fā)工具 KSZ8995XA Evaluation Board RoHS:否 制造商:Micrel 產(chǎn)品:Evaluation Boards 類(lèi)型:Ethernet Transceivers 工具用于評(píng)估:KSZ8873RLL 接口類(lèi)型:RMII 工作電源電壓:
KSZ8995X-EVAL 功能描述:BOARD EVALUATION FOR KSZ8995X RoHS:是 類(lèi)別:編程器，開(kāi)發(fā)系統(tǒng) >> 過(guò)時(shí)/停產(chǎn)零件編號(hào) 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 類(lèi)型:MCU 適用于相關(guān)產(chǎn)品:Freescale MC68HC908LJ/LK（80-QFP ZIF 插口） 所含物品:面板、纜線、軟件、數(shù)據(jù)表和用戶(hù)手冊(cè) 其它名稱(chēng):520-1035
KSZ8997 功能描述:以太網(wǎng) IC 8 Port 10/100 Switch with PHY and Frame Buffers (Lead Free) RoHS:否 制造商:Micrel 產(chǎn)品:Ethernet Switches 收發(fā)器數(shù)量:2 數(shù)據(jù)速率:10 Mb/s, 100 Mb/s 電源電壓-最大:1.25 V, 3.45 V 電源電壓-最小:1.15 V, 3.15 V 最大工作溫度:+ 85 C 封裝 / 箱體:QFN-64 封裝:Tray
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*