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KS8993M Datasheet(PDF) 16 Page - Micrel Semiconductor |
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KS8993M Datasheet(HTML) 16 Page - Micrel Semiconductor |
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16 / 85 page 
Micrel, Inc. KS8993M/ML/MI April 2005 16 M9999-041205 Pin Number Pin Name Type (1) Description 104 105 PV21 PV23 Ipu Ipu Port 2 port-based VLAN mask bits – Use to select which ports may transmit packets received on port 2. PV21 = 1, port 1 may transmit packets received on port 2 PV21 = 0, port 1 will not transmit any packets received on port 2 PV23 = 1, port 3 may transmit packets received on port 2 PV23 = 0, port 3 will not transmit any packets received on port 2 106 DGND Gnd Digital ground 107 VDDIO P 3.3V digital VDD 108 109 PV12 PV13 Ipu Ipu Port 1 port-based VLAN mask bits – Use to select which ports may transmit packets received on port 1. PV12 = 1, port 2 may transmit packets received on port 1 PV12 = 0, port 2 will not transmit any packets received on port 1 PV13 = 1, port 3 may transmit packets received on port 1 PV13 = 0, port 3 will not transmit any packets received on port 1 110 P3_1PEN Ipd Enable 802.1p priority classification on port 3 ingress 1 = enable 0 = disable Enable is from the receive perspective. If 802.1p processing is disabled or there is no tag, priority is determined by the P3_PP pin. 111 P2_1PEN Ipd Enable 802.1p priority classification on port 2 ingress 1 = enable 0 = disable Enable is from the receive perspective. If 802.1p processing is disabled or there is no tag, priority is determined by the P2_PP pin. 112 P1_1PEN Ipd Enable 802.1p priority classification on port 1 ingress 1 = enable 0 = disable Enable is from the receive perspective. If 802.1p processing is disabled or there is no tag, priority is determined by the P1_PP pin. 113 P3_TXQ2 Ipd Select transmit queue split on port 3 1 = split 0 = no split The split sets up high and low priority queues. Packet priority classification is done on ingress ports, via port-based, 802.1p or TOS based scheme. The priority enabled queuing on port 3 is set by P3_TXQ2. Note: 1. P = Power supply. Gnd = Ground. Ipu = Input w/ internal pull-up. Ipd = Input w/ internal pull-down. |
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