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AC206-DS02-R 数据表(PDF) 33 Page - Broadcom Corporation. |
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AC206-DS02-R 数据表(HTML) 33 Page - Broadcom Corporation. |
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33 / 70 page ![]() Preliminary Data Sheet AC206 07/08/02 B roa dcom Document AC206-DS05-405-R Register Description Page 21 INITIAL DEVICE CONFIGURATION REGISTER Table 20: Initial Device Configuration Register Name Type Address Description MII Configuration R/W 06 Used to give the status of MII port. Default is set by pin. Bit Name Type Description Default 15:12 Mode RO Mode[3:2] Digital Interface MODE pins 00 MII 01 7-wire 10 Reverse MII 11 Reserved Mode[1:0] 00 Master mode, Bridge enable 01 Slave mode, Bridge disable 10 Slave mode, Uplink Port 5 is connected to the bridge port in this mode. The other bridge port is connected to 100 segment. 11 Reserved 11 Reserved (Write clear enable) RO 10 Reserved (MIB enable) RO Reserved 0 9 Disable partition R/W 1:disable partition function of MII interface 0 8 External transform selection R/W 1:external transform 1:1.25, 0:external transform 1:1 Ext pin 7 MIIB Speed Select R/W 1:100M interface, 0:10M interface Ext Pin 6:2 Switch debug R/W Selection control for debugging signals 00000 1 100M repeater Partition Alternative R/W 0 = Normal, un-partition a port only when data can be transmitted out from the port for 560 bit-time without a collision. 1 = Alternate, un-partition a port when data can be either transmitted from the port or received from the port for 560 bit-time without a collision. 0 0 10M repeater Partition Alternative R/W 0 = Normal, un-partition a port when data can be either transmitted from the port or received from the port for 560 bit-time without a collision. 1 = Alternate, un-partition a port only when data can be received from the port for 560 bit-time without a collision 0 |
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