参数资料
型号: WBLXT975BHCA8
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP160
封装: ROHS COMPLIANT, PLASTIC, MS-002DD-1, HQFP-160
文件页数: 18/76页
文件大小: 1004K
代理商: WBLXT975BHCA8
Fast Ethernet 10/100 Quad Transceivers — LXT974/LXT975
Datasheet
25
MII Interrupts
The LXT974/975 provides interrupt signals in two ways. The MDIO interrupt reflects the interrupt
status of each port addressed by the read. Details are shown in Figure 10.
Setting bit 17.1 = 1 on all four ports, enables global interrupts using the MDINT pin. An active
Low on this pin indicates a status change on the LXT974/975. Interrupts may be caused by:
Link status change
Auto-negotiation complete
Full-duplex status change
Jabber detect
2.2.3
Hardware Control Interface
The Hardware Control Interface is used to configure operating characteristics of the LXT974/975.
When MDDIS is Low, this interface provides initial values for the MDIO registers, and then
passes control to the MDIO Interface. When MDDIS is High, this interface provides continuous
control over the LXT974/975.
Figure 8. Management Interface - Read Frame Structure
Figure 9. Management Interface - Write Frame Structure
MDC
MDIO
(Read)
32 "1"s
0110
Preamble
SFD
Op Code
PHY Address
Turn
Around
Z0
A4
A3
A0
R4
R3
R0
Register Address
D15
D14
D1
Data
Idle
Write
Read
D15
D14
D1
D0
Idle
MDC
MDIO
(Write)
32 "1"s
010
1
Preamble
SFD
Op Code
PHY Address
Turn
Around
10
A4
A3
A0
R4
R3
R0
Register Address
D15
D14
D1
D0
Data
Idle
Write
Figure 10. MDIO Interrupt Signaling
MDC
MDIO
Interrupt
Turn
Around
Z
Idle
0
INT
Read Data
Sourced by PHY
MDIO FRAME
相关PDF资料
PDF描述
WBLXT974BHCA8 DATACOM, ETHERNET TRANSCEIVER, PQFP160
WBLXT974BHCA8 DATACOM, ETHERNET TRANSCEIVER, PQFP160
WBLXT9785EHC.C2V DATACOM, INTERFACE CIRCUIT, PQFP208
WBLXT9785EHC.D0-865110 DATACOM, INTERFACE CIRCUIT, PQFP208
WBLXT9785EHC.D0-865111 DATACOM, INTERFACE CIRCUIT, PQFP208
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WBLXT9785EHC.D0-865110 制造商:Cortina Systems Inc 功能描述:PHY 8-CH 10Mbps/100Mbps 208-Pin PQFP
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WBLXT9785HC.D0-865112 功能描述:TXRX ETH OCT LP COMM 208-HQFP RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器,接收器,收发器 系列:- 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:50 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS422,RS485 电源电压:4.75 V ~ 5.25 V 安装类型:通孔 封装/外壳:8-DIP(0.300",7.62mm) 供应商设备封装:8-PDIP 包装:管件 产品目录页面:1402 (CN2011-ZH PDF)