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전자부품 데이터시트 검색엔진 |
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전자부품 데이터시트 검색엔진 |
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TMS570LS3137 데이터시트(PDF) 152 Page - Texas Instruments |
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TMS570LS3137 데이터시트(HTML) 152 Page - Texas Instruments |
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152 / 159 page  1 2 MII_MRCLK MII_MRXD MII_MRXDV MII_MRXER VALID TMS570LS3137 SPNS162. – SEPTEMBER 2011 www.ti.com 5.11 Ethernet Media Access Controller The Ethernet Media Access Controller (EMAC) provides an efficient interface between TMS570 and the network. The EMAC supports both 10Base-T and 100Base-TX, or 10 Mbits/second (Mbps) and 100 Mbps in either half- or full-duplex mode, with hardware flow control and quality of service (QoS) support. The EMAC controls the flow of packet data from the TMS570 device to the PHY. The MDIO module controls PHY configuration and status monitoring. Both the EMAC and the MDIO modules interface to the TMS570 device through a custom interface that allows efficient data transmission and reception. This custom interface is referred to as the EMAC control module, and is considered integral to the EMAC/MDIO peripheral. The control module is also used to multiplex and control interrupts. 5.11.1 Ethernet MII Electrical and Timing Specifications Figure 5-18. MII Receive Timing Table 5-27. MII Receive Timing Parameter Description MIN MAX tsu(GMIIMRXD) Setup time, GMIIMRXD to GMIIMRCLK rising edge 8ns tsu(GMIIMRXDV) Setup time, GMIIMRXDV to GMIIMRCLK rising edge 8ns tsu(GMIIMRXER) Setup time, GMIIMRXER to GMIIMRCLK rising edge 8ns th(GMIIMRXD) Hold time, GMIIMRXD valid after GMIIRCLK rising 8ns edge th(GMIIMRXDV) Hold time, GMIIMRXDV valid after GMIIRCLK rising 8ns edge th(GMIIMRXER) Hold time, GMIIMRXDV valid after GMIIRCLK rising 8ns edge 152 Peripheral Information and Electrical Specifications Copyright © 2011, Texas Instruments Incorporated Submit Documentation Feedback focus.ti.com: TMS570LS3137 |
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