參數(shù)資料
型號(hào)： MX98216EC
廠商： MACRONIX INTERNATIONAL CO LTD
元件分類： 微控制器/微處理器
英文描述： 16 CHANNEL(S), 100M bps, LOCAL AREA NETWORK CONTROLLER, PQFP208
封裝： PLASTIC, QFP-208
文件頁(yè)數(shù)： 9/37頁(yè)
文件大?。?/td> 269K
代理商： MX98216EC
MX98216EC
P/N:PM0781
REV. 0.2, Apr, 18, 2001
17
Configuration 1 (Reg1AH), default = 0x502EH
BIT
DESCRIPTION
TYPE
DEFAULT
1A.3-0
Reserved
R/W
0xFH
1A.5-4
Backoff Operation Mode
In normal backoff algorithm, packet transmission delays a random time
within 2n –1 slot time (1 slot time = 512 bit times) when collision occurs.
The switch provides some modification of backoff algorithm to improve
Ethernet performance on half- duplex connection.
00 : standard operation.
01 : first two collisions follow standard backoff.
More than two collisions
in transmission, packet resend delays 0-3 slot times.
10 : packet resend delays 0 slot time only when port buffer full.
11 : packet resend delays 0 slot time all the time.
R/W
00
1A.6
Back Pressure Disable
Enable back pressure on half duplex connection for all ports
0 : enable
1 : disable
R/W
0
1A.7
N/A
1A.8
Reserved
R/W
0
1A.14-9
High/Low Priority Ratio
Bit 9 to 11 means a decimal value for low priority packets to be
transmitted whereas bit 12 to 14 to a decimal value for high priority
packets.
Followings are some example of high to low priority value.
R/W
0x28H
High Priority Value
Low Priority Value
Bit 14 Bit 13 Bit 12
Bit 11 Bit 10 Bit 9
0/1
0
1
0
1
Meaning
High priority port packets need
to be sent first until empty;
then, low priority packets
The transmission ratio of high
to low priority packets is 3 : 1
1A.15
Aging Out
Enable the function of aging out from address table.
0 : enable
1 : disable
R/W
0
Aging Timer (Reg1BH), default = 0x0005H
BIT
DESCRIPTION
TYPE
DEFAULT
1B.15-0
Aging timer provides for address table.
The timer period is defined to
age out the least unused entries on address table.
The formula is
age_timer (bit 0-15) X 65536 X 1ms.
Here are some examples:
Bit 15 – Bit 0
Aging Timer
0x0001H
65.5 sec (around 1 min)
0x0005H
327.7 sec (around 5.5 min)
0x001BH
1769.5 sec (around 30 min)
0x0037H
3604.5 sec (around 1 hr)
R/W
0x0005H
相關(guān)PDF資料
PDF描述
MX98902AQC 2 CHANNEL(S), 10M bps, LOCAL AREA NETWORK CONTROLLER, PQCC84
P024T048T12AL 1-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE
P048T048M12AL 1-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE
P048F048M12AL 1-OUTPUT 120 W DC-DC REG PWR SUPPLY MODULE
PADS1298CZXGT SPECIALTY ANALOG CIRCUIT, PBGA64
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
MX98224EC 制造商:未知廠家 制造商全稱:未知廠家 功能描述:24-port Dual-Speed Ethernet Switch Controller
MX98702 制造商:未知廠家 制造商全稱:未知廠家 功能描述:LAN Transceiver
MX98704 制造商:MCNIX 制造商全稱:Macronix International 功能描述:100BASE-TX PHYSICAL DATA TRANSCEIVER
MX98704EC 制造商:MCNIX 制造商全稱:Macronix International 功能描述:100BASE-TX PHYSICAL DATA TRANSCEIVER
MX98704QC 制造商:MCNIX 制造商全稱:Macronix International 功能描述:100BASE-TX PHYSICAL DATA TRANSCEIVER
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

*
*
*