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TNETX4090GGP 数据表(PDF) 17 Page - Texas Instruments |
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TNETX4090GGP 数据表(HTML) 17 Page - Texas Instruments |
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17 / 78 page ![]() TNETX4090 ThunderSWITCH II™ 9-PORT 100-/1000-MBIT/S ETHERNET™ SWITCH SPWS044E – DECEMBER 1997 – REVISED AUGUST 1999 17 POST OFFICE BOX 655303 • DALLAS, TEXAS 75265 Terminal Functions (Continued) LED interface TERMINAL I/O INTERNAL DESCRIPTION NAME NO. I/O RESISTOR DESCRIPTION LED_CLK AD19 O None LED clock. Serial shift clock for the LED status data. LED_DATA AE19 O None LED data. Serial LED status data. 100-/1000-Mbit/s port PCS LED interface TERMINAL I/O INTERNAL DESCRIPTION NAME NO. I/O RESISTOR DESCRIPTION L08_DPLX AE18 None Duplex LED. When in PMA mode, this terminal is low if the port is configured for full-duplex operation. It is high at all other times. power supply TERMINAL DESCRIPTION NAME NO. DESCRIPTION GND A1, A2, A13, A14, A25, A26, AF13, AF14, B1, B3, B24, B26, C2, C25, N1, N26, P1, P25, P26, R23, R24, R26, T24, U23, W23, W24, W25, W26, Y23, Y25, AA23, AA25, AB25, AD2, AD25, AE1, AE3, AE24, AE26, AF1, AF2, AF25, AF26 Ground. The 0-V reference for the TNETX4090. GNDa U24 Ground. The 0-V reference for the analog functions within the rambus ASIC cell (RAC). VDD(2.5) B2, B25, C3, C24, D4, D9, D14, D18, D23, J4, J23, N4, P23, V4, V23, AC4, AC9, AC13, AC18, AC23, AD3, AD24, AE2, AE25 2.5-V supply voltage. Power for the core. VDD(3.3) D8, D13, D17, H23, K4, P4, W4, AC10, AC14, AC19 3.3-V supply voltage. Power for the I/Os. VDDa(2.5) T23 2.5-V supply voltage. Power for the analog functions within the RAC. |
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