參數(shù)資料
型號: LXT974
廠商: Intel Corp.
英文描述: Fast Ethernet 10/100 Quad Transceivers
中文描述: 四10/100快速以太網(wǎng)收發(fā)器
文件頁數(shù): 69/74頁
文件大小: 1089K
代理商: LXT974
Fast Ethernet 10/100 Quad Transceivers
LXT974/LXT975
Datasheet
69
16.7:6
LED_2 Select
Determine condition indicated by LED_2
R/W
0 0
bit 7
bit 6
Indication Setting
0
0
LED
n
_2 indicates Link
0
1
LED
n
_2 indicates Half-Duplex Status
1
0
LED
n
_2 indicates 100 Mbps
1
1
LED
n
_2 indicates Collision
16.5:4
LED_1 Select
Determine condition indicated by LED_1
R/W
0 0
bit 5
bit 4
Indication Setting
0
0
LED
n
_1 indicates Receive Activity
0
1
LED
n
_1 indicates Link
1
0
LED
n
_1 indicates Half-Duplex Status
1
1
LED
n
_1 indicates 100 Mbps
16.3:2
LED_0 Select
Determine condition indicated by LED_0
R/W
0 0
bit 3
bit 2
Indication Setting
0
0
LED
n
_0 indicates Transmit Activity
0
1
LED
n
_0 indicates Receive Activity
1
0
LED
n
_0 indicates Link
1
1
LED
n
_0 indicates Half-Duplex Status
16.1
Link Algorithm
1 = Enhanced link algorithm - Link goes down when 12 idle symbols in
a row are not received within 1 to 2 ms.
0 = Standard link algorithm - Link goes down when symbol error rate is
greater than 64/1024.
R/W
0
16.0
LED Extension
1 = Disable extension of LED active time for LED
n
_<2:0>.
0 = Enable extension of LED active time for LED
n
_<2:0>.
R/W
0
Table 52. Interrupt Enable Register (Address 17, Hex 11)
Bit
Name
Description
Type
1
Default
17.15:2
Reserved
Write as 0; ignore on read.
R/W
N/A
17.1
INTEN
1 = Enable interrupts. Must be enabled for bit 17.0 or 19.12 to be effective.
0 = Disable interrupts.
R/W
0
17.0
TINT
1 = Forces MDINT Low and sets bit 18.15 = 1. Also forces interrupt pulse
on MDIO when bit 19.12 = 1.
0 = Normal operation.
This bit is ignored unless the interrupt function is enabled (17.1 = 1).
R/W
0
1. R/W = Read /Write
Table 51. LED Configuration Register (Address 16, Hex 10)
Bit
Name
Description
Type
1
Default
1. R/W = Read /Write
相關(guān)PDF資料
PDF描述
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LXT974B Fast Ethernet 10/100 Quad Transceivers
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LXT974A 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Fast Ethernet 10/100 Quad Transceivers
LXT974AHC 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Fast Ethernet 10/100 Quad Transceivers
LXT974B 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Fast Ethernet 10/100 Quad Transceivers
LXT974BHC 制造商:INTEL 制造商全稱:Intel Corporation 功能描述:Fast Ethernet 10/100 Quad Transceivers
LXT974QC 制造商:LEVELONE 功能描述: