Electronic Components Datasheet Search |
|
EGLXT914QC-B3 Datasheet(PDF) 11 Page - Intel Corporation |
|
EGLXT914QC-B3 Datasheet(HTML) 11 Page - Intel Corporation |
11 / 45 page Intel® LXT914 Flexible Quad Ethernet Repeater Datasheet 31-Oct-2005 Intel® LXT914 Flexible Quad Ethernet Repeater Order Number: 248989, Revision: 003 11 Table 4. Serial Port Signal Descriptions (External Management Mode) PLCC PQFP Symbol I/O Description 14 11 SENI I Serial Enable Input. This active Low input is used to access the LXT914 serial interface. To write to the serial input (SDI), an External Management Device (EMD) must drive this pin from High to Low. The input must be asserted Low concurrent with the appearance of data on SDI and remain Low for the duration of the serial input transaction. 15 12 SENO O Serial Enable Output. This active Low output is used to access the serial interface of an EMD. When the LXT914 sends a data stream to the EMD through the serial port (SDO), this output transitions from High to Low and remains Low for the duration of the serial transmission. 16 13 SDI I Serial Data Input. This pin is the input for the EMD serial interface. Setup and operating parameters are supplied to the LXT914 in a serial data stream through this port when operating in the External Management Mode. 17 14 SDO I/O Serial Data Output. After each packet transmission or interrupt event, the LXT914 reports status information to the EMD in a serial data stream through this port. 18 16 SCLK I Serial Clock. This 10 MHz clock synchronizes the serial interface between the LXT914 and the EMD. Both devices must be supplied from the same clock source. In synchronous mode, SCLK and BCLK may be tied together. Table 5. Serial Port Signal Descriptions (Local Management Mode) PLCC PQFP Symbol I/O Description 14 11 CS O Chip Select. The LXT914 is designed for use with an EEPROM or similar device which may be used to store setup parameters and serially download them to the LXT914 during initialization. In a single-device application or in the first device of a daisy chain application, this pin is an active High Chip Select output used to enable the EEPROM. SENI I Serial Enable Input. In subsequent devices of a daisy-chain configuration, a High-to-Low transition on this pin enables the serial input port (SDI). The input must be asserted concurrent with the appearance of data on SDI and remain Low for the duration of the serial input transaction. 15 12 SENO O Serial Enable Output. During initialization, the LXT914 accepts 48 bits of setup data through the SDI port. After the 48th bit, the LXT914 asserts this pin Low. When multiple LXT914 devices are connected in a daisy-chain, this output is tied to the SENI input of the next device in the chain. Thus each device in the chain is serially enabled by the previous device until all the devices have read in their 48 bits of setup data. 16 13 SDI I Setup Data Input. This pin is the serial input port for the setup parameters (48 bits).This pin should be tied Low if no EEPROM is present. 17 14 RTS I/O Request To Send. In a single-device application or in the first device of a daisy chain application, this pin outputs a 9-bit, active High sequence. This pin must be tied to the EEPROM DI input to trigger the EEPROM to download its stored data. In subsequent devices this pin is not used. 18 16 SCLKIO I/O Serial Clock. A 1 MHz clock provided by the first LXT914 in the chain to all subsequent repeaters and the EEPROM. In the Local mode all repeaters have their SCLKIO pins tied together. |
Similar Part No. - EGLXT914QC-B3 |
|
Similar Description - EGLXT914QC-B3 |
|
|
Link URL |
Privacy Policy |
ALLDATASHEET.COM |
Does ALLDATASHEET help your business so far? [ DONATE ] |
About Alldatasheet | Advertisement | Datasheet Upload | Contact us | Privacy Policy | Link Exchange | Manufacturer List All Rights Reserved©Alldatasheet.com |
Russian : Alldatasheetru.com | Korean : Alldatasheet.co.kr | Spanish : Alldatasheet.es | French : Alldatasheet.fr | Italian : Alldatasheetit.com Portuguese : Alldatasheetpt.com | Polish : Alldatasheet.pl | Vietnamese : Alldatasheet.vn Indian : Alldatasheet.in | Mexican : Alldatasheet.com.mx | British : Alldatasheet.co.uk | New Zealand : Alldatasheet.co.nz |
Family Site : ic2ic.com |
icmetro.com |