DESCRIPTION OF PIN FUNCTIONS
PIN NO. | NAME | SYMBOL | TYPE |
| DESCRIPTION |
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125 | AUI Collision | COLP | Diff. Input | AUI collision differential inputs. A collision is | |
126 |
| COLN |
| indicated by a 10 MHz signal at this input pair. | |
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121 | TPE Receive | TPERXP | Diff. Input | ||
122 |
| TPERXN |
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4 | TPE | TPETXP | Diff. Output | Internal ENDEC - | |
6 | Transmit | TPETXN |
| differential outputs. | |
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5 | TPE | TPETXDP | Diff. Output | ||
7 | Transmit | TPETXDN |
| outputs. Used in combination with TPETXP | |
| Delayed |
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| and TPETXN to generate the | |
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| transmit | |
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114 | Powerdown | PWRDWN | I with pullup | Internal ENDEC - Powerdown input. It keeps | |
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| the SMC91C95 in powerdown mode when | |
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| high (open). Must be low for normal operation. | |
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| Refer to the Powerdown Matrix following for | |
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| further details. | |
| Transmit | TXCLK |
| External ENDEC - Transmit clock input from | |
| Clock |
|
| external ENDEC | |
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99 | nWakeup | nWAKEUP- | I with pullup | Input. | When pulled down, the device will |
| Enable | EN |
| enable Magic Packet (MP) logic and put the | |
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| Ethernet function in powerdown mode. The | |
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| pin assertion will override the state of | |
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| WAKEUP_EN and PWRDN bits in CTR, | |
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| Pwrdwn bit in ECSR, and Enable Function bit | |
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| ECOR. When deasserted, the WAKEUP_EN | |
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| and PWRDN bits will be changed to (0), | |
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| Pwrdwn to (0), and Enable Function to (1). | |
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100 | Wakeup | WAKEUP | O4 | Output. | Asserted high if nWAKEUP_EN is |
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| asserted and a valid Magic Packet (MP) | |
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| pattern is detected. The pin remains asserted | |
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| until nWAKEUP_EN is deasserted. | |
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118 | Bias | RBIAS | Analog Input | A 22 kohm 1% resistor should be connected | |
| Resistor |
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| between this pin and analog ground. | |
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| 16 |
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