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ICS1893CF датащи(PDF) 93 Page - Integrated Device Technology

номер детали ICS1893CF
подробное описание детали  3.3-V 10Base-T/100Base-TX Integrated PHYceiver?
PDF  127 Pages
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производитель  IDT [Integrated Device Technology]
домашняя страница  http://www.idt.com
Logo IDT - Integrated Device Technology

ICS1893CF датащи(HTML) 93 Page - Integrated Device Technology

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Chapter 8 Pin Diagram, Listings, and Descriptions
ICS1893CF, Rev. J, 08/11/09
August, 2009
93
ICS1893CF Data Sheet Rev. J - Release
Copyright © 2009, Integrated Device Technology, Inc.
All rights reserved.
TXD0
TXD1
TXD2
TXD3
39
40
41
42
Input
Transmit Data 0–3.
• TXD0 is the least-significant bit and TXD3 is the most-significant bit of
the MII transmit data nibble received from the MAC.
• The ICS1893CF samples its TXEN signal to determine when data is
available for transmission. When TXEN is asserted, the signals on a
the TXD[3:0] pins are sampled synchronously on the rising edges of
the TXCLK signal.
TXEN
38
Input
Transmit Enable.
In MII mode:
• The ICS1893CF samples its TXEN signal to determine when data is
available for transmission. When TXEN is asserted, the ICS1893CF
begins sampling the data nibbles on the transmit data lines TXD[3:0]
synchronously with TXCLK. The ICS1893CF then transmits this data
over the media.
• Following the de-assertion of TXEN, the ICS1893CF terminates
transmission of nibbles over the media.
Table 8-7. MAC Interface Pins: Media Independent Interface (MII) (Continued)
Pin
Name
Pin
Number
Pin
Type
Pin Description



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