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Rainbow Electronics W90N740 User Manual

Page 106

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W90N740

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TXABT [21]: Transmit Abort

Default value: 0

The bit is set to indicate 16 collisions occur while transmitting the same packet.

NCS [20]: No Carrier Sense

Default value: 0

Set to indicate no carrier sense is presented during transmission.

EXDEF [19]: Defer

Default value: 0

This bit is set to indicate that defer time exceeding 0.32768ms operated at 100Mbs/s and 3.2768ms
operated at 10Mbs/s. When the EnEXDEF in MIEN is set, the internal 15-bit counter will automatically
count the deferred bit time and generate interrupt when the counter overflows.

TXCP [18]: Transmit Completion

Default value: 0

This bit is set when the MAC transmits, or discards one packet.

TXEMP [17]: Transmit FIFO Empty

Default value: 0

Set when MAC transmitting FIFO becomes empty (underflow) during a packet transmission.

TXINTR [16]: Interrupt on Transmit

Default value: 0

This bit is set if transmission of a packet caused an interrupt condition.

CFR [14]: Control Frame Receive

Default value: 0

This field will be set if the incoming frame is a MAC control frame (type==8808h).

NATErr [13]: NAT Processing Error

Default value: 0

This field will be set if there is any error during NATA do the NAT processing. If the status and EnNATErr
in MIEN are both set, the EMC_RxINT will be triggered.

NATOK [12]: NAT Processing OK

Default value: 0