Rainbow Electronics W90N745CDG User Manual

Page 148

W90N745CD/W90N745CDG

Publication Release Date: September 22, 2006

143

Revision

BITS

DESCRIPTIONS

[31:12] Reserved -

[11] TXHA

The Transmission Halted high indicates the next normal packet transmission
process will be halted because the bit TXON of MCMDR is disabled be S/W.
1’b0: Next normal packet transmission process will go on.
1’b1: Next normal packet transmission process will be halted.

[10] SQE

The Signal Quality Error high indicates the SQE error found at end of packet
transmission on 10Mbps half-duplex mode. The SQE error check will only be
done while both bit EnSQE of MCMDR is enabled and EMC is operating on
10Mbps half-duplex mode.
1’b0: No SQE error found at end of packet transmission.
1’b0: SQE error found at end of packet transmission.

[9] PAU

The Transmission Paused high indicates the next normal packet
transmission process will be paused temporally because EMC received a
PAUSE control frame, or S/W set bit SDPZ of MCMDR and make EMC to
transmit a PAUSE control frame out.
1’b0: Next normal packet transmission process will go on.
1’b1: Next normal packet transmission process will be paused.

[8] DEF

The Deferred Transmission high indicates the packet transmission has
deferred once. The DEF is only available while EMC is operating on half-
duplex mode.
1’b0: Packet transmission doesn’t defer.
1’b1: Packet transmission has deferred once.

[7:4] CCNT

The Collision Count indicates the how many collision occurred consecutively
during a packet transmission. If the packet incurred 16 consecutive collisions
during transmission, the CCNT will be 4’h0 and bit TXABT will be set to 1.

[3] Reserved

[2] RFFull

The RxFIFO Full indicates the RxFIFO is full due to four 64-byte packets are
kept in RxFIFO and the following incoming packet will be dropped.
1’b0: The RxFIFO is not full.
1’b1: The RxFIFO is full and the following incoming packet will be dropped.

[1] RXHA

The Receive Halted high indicates the next normal packet reception process
will be halted because the bit RXON of MCMDR is disabled be S/W.
1’b0: Next normal packet reception process will go on.
1’b1: Next normal packet reception process will be halted.

[0] CFR

The Control Frame Received high indicates EMC receives a flow control
frame. The CFR only available while EMC is operating on full duplex mode.
1’b0: The EMC doesn’t receive the flow control frame.
1’b1: The EMC receives a flow control frame.