Datasheet

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DP83849I
3.5.2 TX MII Port Mapping
TX MII Port Mapping controls and configurations are
shown in the following tables:
Table 8. TX MII Port Mapping Controls
Table 9. TX MII Port Mapping Configurations
3.5.3 Common Flexible MII Port Configurations
Table 10. Common Flexible MII Port Configurations
RBR[10:9] TX Channel Source
00 Normal Port
01 Opposite Port
10 Opposite RX Port
11 Disabled
Channel A RBR[10:9] Port A TX Source Channel B RBR[10:9] Port B TX Source
00 MII Port A 00 MII Port B
01 MII Port B 01 MII Port A
10 RX Channel B 10 RX Channel A
11 Disabled 11 Disabled
Mode Channel A
RBR[12:9]
Channel B
RBR[12:9]
Description
Normal 0000 0000 MII port A assigned to Channel A, MII
Port B assigned to Channel B
Full Port Swap 0101 0101 MII port A assigned to Channel B, MII
Port B assigned to Channel A
Extender 1110 1110 MII RX disabled, Channel A transmits
from Channel B RX data, Channel B
transmits from Channel A RX data
Broadcast TX MII Port A xx00 xx01 Both Channels transmit from TX MII
Port A
Broadcast TX MII Port B xx01 xx00 Both Channels transmit from TX MII
Port B
Mirror RX Channel A 10xx 11xx Channel A RX traffic appears on both
Ports.
Mirror RX Channel B 11xx 10xx Channel B RX traffic appears on both
Ports.
Disable Port A 1111 xxxx MII Port A is disabled
Disable Port B xxxx 1111 MII Port B is disabled