Two Port 10/100 Managed Ethernet Switch with
Datasheet
14.5.3.19Switch Engine Port State Register (SWE_PORT_STATE)Register #: | 1843h | Size: | 32 bits |
This register is used to configure the per port spanning tree state.
BITS |
| DESCRIPTION | TYPE | DEFAULT |
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31:6 | RESERVED | RO | - | |
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5:4 | Port State Port 2 | R/W | 00b | |
| These bits specify the spanning tree port states for Port 2. |
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| 00 | = Forwarding |
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| 01 | = Blocking |
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| 10 | = Learning |
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| 11 = Listening |
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3:2 | Port State Port 1 | R/W | 00b | |
| These bits specify the spanning tree port states for Port 1. |
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| 00 | = Forwarding |
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| 01 | = Blocking |
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| 10 | = Learning |
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| 11 = Listening |
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1:0 | Port State Port 0 | R/W | 00b | |
| These bits specify the spanning tree port states for Port 0(Host MAC). |
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| 00 | = Forwarding |
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| 01 | = Blocking |
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| 10 | = Learning |
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| 11 = Listening |
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| Note: Typically, the Host MAC is kept in the forwarding state, since it is |
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| not a true network port. |
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SMSC LAN9311/LAN9311i | 389 | Revision 1.4 |
| DATASHEET |
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