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ICS1893AF Datasheet(PDF) 108 Page - Renesas Technology Corp

Part # ICS1893AF
Description  3.3-V 10Base-T/100Base-TX Integrated PHYceiver
PDF  137 Pages
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Manufacturer  RENESAS [Renesas Technology Corp]
Direct Link  http://www.renesas.com
Logo RENESAS - Renesas Technology Corp

ICS1893AF Datasheet(HTML) 108 Page - Renesas Technology Corp

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ICS1893AF, Rev D 10/26/04
October, 2004
108
Chapter 9
Pin Diagram, Listings, and Descriptions
ICS1893AF Data Sheet - Release
Copyright © 2004, Integrated Circuit Systems, 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/repeater.
• The ICS1893AF 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 ICS1893AF samples its TXEN signal to determine when data is
available for transmission. When TXEN is asserted, the ICS1893AF
begins sampling the data nibbles on the transmit data lines TXD[3:0]
synchronously with TXCLK. The ICS1893AF then transmits this data
over the media.
• Following the de-assertion of TXEN, the ICS1893AF terminates
transmission of nibbles over the media.
Table 9-8.
MAC/Repeater Interface Pins: Media Independent Interface (MII) (Continued)
Pin
Name
Pin
Number
Pin
Type
Pin Description



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