Sun Microsystems STP2002QFP Network Router User Manual


 
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STP2002QFP
Sun Microelectronics
Fast Ethernet, Parallel Port, SCSI (FEPS) - STP2002QFP
7.5.49 RX_MAC Software Reset Command
This 16-bit command performs a software reset to the logic in the RX_MAC.
The defined address must be written with the value of 0x0000.
7.5.50 RX_MAC Configuration Register
This 13-bit register controls the operation of the RX_MAC.
Table 180: TX_MAC State Machine Register Definition
Field Bits Description Type
3:0 TLM state machine state R
7:4 Encapsulation state machine state R
Table 181: RX_MAC Software Reset Command Address
Register Physical Address Access Size
RX_MAC software reset command 0x8C0_6308 4 bytes
Table 182: RX_MAC Configuration Register Address
Register Physical Address Access Size
RX_MAC configuration register 0x8C0_630C 4 bytes
Table 183: RX_MAC Configuration Register Definition
Field Bits Description Type
Rx_MAC_Enable 0 When set to 1, the RX_MAC will start
requesting packet data transfers to the
ERX, and the receive Ethernet protocol
execution will begin. When cleared to 0, it
will force the RX_MAC state machines to
either remain in the idle state, or to transi-
tion to the idle state and stay there.
R/W
4:1 Reserved R
Strip_Pad 5 When set to 1, this bit will cause the
RX_MAC to strip the pad bytes of the
receive frames.
R/W
Promiscuous_Mode 6 When set to 1, this bit will cause the
RX_MAC to accept all valid frames from
the network, regardless of the contents of
the DA field of a frame.
R/W