N_VCC33
NGND
L1 | BEAD |
N_VCC33
R72 4.7K
25MHZ ENET_RESET_n SPEED ACT ENET_CS_n 
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| ENET_D[0..15] |
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| J6 |
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| N_VCC25 | L2 |
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| MNT1 | MNT0 |
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| D3 |
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| TD+ | 1 |
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N_VCC33 | 12 |
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| TD- | 4 | N_VCC25 |
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D4 YELLOW |
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| CTR |
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| 3 |
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| 10 |
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| RD+ |
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| 6 |
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| D2 |
| NT1SM | NT0SM | RD- |
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| GREEN |
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| 9 | D1 | CHSG | 8 |
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N_VCC33 |
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| RJ45INTLED | 14 | 13 |
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| CHSGND | 49.9 | 49.9 | 49.9 | 49.9 | |
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CHSGND |
| C18 | C19 |
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| 0.1u | 0.1u |
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| NGND | NGND |
R77 | 120 | SPEED |
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R78 | 120 | ACT |
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C17 | BC36 | BC37 | R70 | U9 | 48 47 46 45 44 43 42 41 40 39 38 37 |
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| BGGND RXGND SD GND X1 X2 VDD TEST RST#PW LED1 LED2 CS# |
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10u | 0.1u | 0.1u | 6.8K |
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| R71 |
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| 4.7K |
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| 1 | BGRES |
| IOW# | 36 | ENET_IOW_n |
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BEAD |
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| 35 | ENET_IOR_n |
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| RXVDD25 |
| IOR# |
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RX+ |
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| 34 | ENET_INT |
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| INT |
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RX- |
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| RX- |
| GND | ENET_CMD |
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| NGND |
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| RXGND |
| CMD |
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| 31 | ENET_D8 |
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TX+ |
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| TXGND |
| GP1/SD8 |
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| 7 | 30 |
| N_VCC33 | ||||
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| TX+ | VDD | ENET_D9 | |||||
TX- |
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| TX- |
| GP2/SD9 |
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| 9 | DM9000AE | 28 | ENET_D10 |
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| TXVDD25 | GP3/SD10 |
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| 10 |
| 27 | ENET_D11 |
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| GP4/SD11 |
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| 11 |
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| SD6 |
| GP5/SD12 |
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| 12 |
| 25 | ENET_D13 |
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| SD5 |
| GP6/SD13 |
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| SD4 SD3 GND SD2 SD1 SD0 EEDIO EEDCK EEDCS AKE/SD15 VDD LED3/SD14 W |
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| 13 14 15 16 17 18 19 20 21 22 23 24 |
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| ENET_D14 | N_VCC33 |
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| ENET_D15 |
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| ENET_D0 |
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| ENET_D1 |
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| ENET_D2 |
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| ENET_D3 |
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| ENET_D4 |
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| ENET_D5 |
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| ENET_D6 |
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| ENET_D7 |
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Figure 5.17. Fast Ethernet schematic.
Signal Name | FPGA Pin No. | Description |
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ENET_DATA[0] | PIN_A23 | DM9000A DATA[0] |
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ENET_DATA[1] | PIN_C22 | DM9000A DATA[1] |
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ENET_DATA[2] | PIN_B22 | DM9000A DATA[2] |
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ENET_DATA[3] | PIN_A22 | DM9000A DATA[3] |
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ENET_DATA[4] | PIN_B21 | DM9000A DATA[4] |
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ENET_DATA[5] | PIN_A21 | DM9000A DATA[5] |
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ENET_DATA[6] | PIN_B20 | DM9000A DATA[6] |
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ENET_DATA[7] | PIN_A20 | DM9000A DATA[7] |
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ENET_DATA[8] | PIN_B26 | DM9000A DATA[8] |
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ENET_DATA[9] | PIN_A26 | DM9000A DATA[9] |
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ENET_DATA[10] | PIN_B25 | DM9000A DATA[10] |
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ENET_DATA[11] | PIN_A25 | DM9000A DATA[11] |
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ENET_DATA[12] | PIN_C24 | DM9000A DATA[12] |
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ENET_DATA[13] | PIN_B24 | DM9000A DATA[13] |
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ENET_DATA[14] | PIN_A24 | DM9000A DATA[14] |
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ENET_DATA[15] | PIN_B23 | DM9000A DATA[15] |
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ENET_CLK | PIN_D27 | DM9000A Clock 25 MHz |
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ENET_CMD | PIN_B27 | DM9000A Command/Data Select, 0 = Command, 1 = Data |
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| 51 |
