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DP83815 Datasheet(PDF) 10 Page - Texas Instruments |
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DP83815 Datasheet(HTML) 10 Page - Texas Instruments |
10 / 110 page 9 www.national.com 2.0 Pin Description (Continued) Note: DP83815 supports NM27LV010 for the BIOS ROM interface device. 100BASE-TX/10BASE-T Interface Symbol LQFP Pin No(s) LBGA Pin No(s) Dir Description TPTDP, TPTDM 54, 53 G1, F1 A-O Transmit Data: Differential common output driver. This differential common output is configurable to either 10BASE-T or 100BASE-TX signaling: 10BASE-T: Transmission of Manchester encoded 10BASE-T packet data as well as Link Pulses (including Fast Link Pulses for Auto- Negotiation purposes). 100BASE-TX: Transmission of ANSI X3T12 compliant MLT-3 data. The DP83815 will automatically configure this common output driver for the proper signal type as a result of either forced configuration or Auto-Negotiation. TPRDP, TPRDM 46, 45 D1, C1 A-I Receive Data: Differential common input buffer. This differential common input can be configured to accept either 100BASE-TX or 10BASE-T signaling: 10BASE-T: Reception of Manchester encoded 10BASE-T packet data as well as normal Link Pulses and Fast Link Pulses for Auto- Negotiation purposes. 100BASE-TX: Reception of ANSI X3T12 compliant scrambled MLT-3 data. The DP83815 will automatically configure this common input buffer to accept the proper signal type as a result of either forced configuration or Auto-Negotiation. BIOS ROM/Flash Interface Symbol LQFP Pin No(s) LBGA Pin No(s) Dir Description MCSN 129 G13 O BIOS ROM/Flash Chip Select: During a BIOS ROM/Flash access, this signal is used to select the ROM device. MD7, MD6, MD5, MD4/EEDO, MD3, MD2, MD1/CFGDISN, MD0 141, 140, 139, 138, 135, 134, 133, 132 D13, D12, D14, E11, E14, F11, F13, F12 I/O BIOS ROM/Flash Data Bus: During a BIOS ROM/Flash access these signals are used to transfer data to or from the ROM/Flash device. MD[5:0] pins have internal weak pull ups. MD6 and MD7 pins have internal weak pull downs. MA5, MA4/EECLK, MA3/EEDI, MA2/LED100LNK, MA1/LED10LNK, MA0/LEDACT 3, 2, 1, 144, 143, 142 B11, A12, B12, C13, C12, C14 O BIOS ROM/Flash Address: During a BIOS ROM/Flash access, these signals are used to drive the ROM/Flash address. MWRN 131 F14 O BIOS ROM/Flash Write: During a BIOS ROM/Flash access, this signal is used to enable data to be written to the Flash device. MRDN 130 G11 O BIOS ROM/Flash Read: During a BIOS ROM/Flash access, this signal is used to enable data to be read from the Flash device. |
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