
Networking Silicon — 82555
Bit(s) | Name |
| Description | Default | R/W |
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13 | Force Transmit H- | 1 | = Force transmit | 0 | RW |
| Pattern | 0 | = Normal operation |
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12 | Force 34 Transmit | 1 | = Force 34 transmit pattern | 0 | RW |
| Pattern | 0 | = Normal operation |
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11 | Good Link | 1 = | 0 | RW | |
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| 0 | = Normal operation |
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10 | Reserved | This bit is reserved and should be set to 0b. | 0 | RW | |
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9 | Transmit Carrier | 1 | = Transmit Carrier Sense disabled | 0 | RW |
| Sense Disable | 0 | = Transmit Carrier Sense enabled |
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8 | Disable Dynamic | 1 | = Dynamic | 0 | RW |
| 0 | = Dynamic |
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7 | 1 | = | 0 | RW | |
| Loopback | 0 | = |
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6 | MDI | 1 | = MDI | 0 | RW |
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| 0 | = Normal operation |
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5 | Filter | 1 | = | 0 | RW |
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| 0 | = Normal filter operation |
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4 | Auto Polarity | 1 | = Auto Polarity disabled | 0 | RW |
| Disable | 0 | = Normal polarity operation |
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3 | Squelch Disable | 1 | = | 0 | RW |
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| 0 | = Normal squelch operation |
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2 | Extended | 1 | = | RW | |
| Squelch | 0 | = |
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1 | Link Integrity | 1 | = Link disabled | 0 | RW |
| Disable | 0 | = Normal Link Integrity operation |
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0 | Jabber Function | 1 | = Jabber disabled | 0 | RW |
| Disable | 0 | = Normal Jabber operation |
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7.2.3.3Register 20:
Bit(s) | Name | Description | Default | R/W |
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15:0 | Disconnect Event | This field contains a | RO | |
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| each disconnect event. The counter stops when full |
| SC |
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| (and does not roll over) and |
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| In repeater mode, a frame that starts without “JK” is a |
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| disconnect event. |
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7.2.3.4Register 21:
Bit(s) | Name | Description | Default | R/W |
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15:0 | Receive Error | This field contains a | RO | |
| Frame | once per frame for any receive error condition (such |
| SC |
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| as a symbol error or premature end of frame) in that |
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| frame. The counter stops when full (and does not roll |
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| over) and |
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Datasheet | 33 |