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ICS1893CF 데이터시트(PDF) 93 Page - Renesas Technology Corp |
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ICS1893CF 데이터시트(HTML) 93 Page - Renesas Technology Corp |
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93 / 127 page ![]() Chapter 8 Pin Diagram, Listings, and Descriptions ICS1893CF, Rev. K, 05/13/10 May, 2010 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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