参数资料
型号: WJLXT972ALC.A4
厂商: CORTINA SYSTEMS INC
元件分类: 网络接口
英文描述: DATACOM, ETHERNET TRANSCEIVER, PQFP64
封装: ROHS COMPLIANT, LQFP-64
文件页数: 10/97页
文件大小: 1281K
代理商: WJLXT972ALC.A4
Intel
LXT972A Single-Port 10/100 Mbps PHY Transceiver
18
Datasheet
Document Number: 249186-004
Revision Date: 25-Oct-2005
Table 5 lists signal descriptions of the LXT972A Transceiver MII controller interface pins.
Table 5.
Intel
LXT972A Transceiver MII Controller Interface Signal Descriptions
LQFP
Pin#
Symbol
Type
Signal Description
3
MDDIS
I
Management Data Disable.
When MDDIS is High, the MDIO is disabled from read and write
operations.
When MDDIS is Low at power-up or reset, the Hardware Control
Interface pins control only the initial or “default” values of their
respective register bits.
After the power-up/reset cycle is complete, bit control reverts to the
MDIO serial channel.
43
MDC
I
Management Data Clock.
Clock for the MDIO serial data channel.
Maximum frequency is 8 MHz.
42
MDIO
I/O
Management Data Input/Output.
Bidirectional serial data channel for PHY/STA communication.
64
MDINT_L
OD
Management Data Interrupt.
When Register bit 18.1 = 1, a Low output on this active-low pin
indicates a status change.
Interrupt is cleared by reading Register 19.
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