W90P710_05 Datasheet, PDF (107/526 Pages) Winbond – 16/32-bit ARM microcontroller

W90P710
LC [23]: Late Collision
The LC indicates the collision occurred in the outside of 64 bytes collision window. This means after
the 64 bytes of a frame has transmitted out to the network, the collision still occurred. The late collision
check will only be done while EMC is operating on half-duplex mode.
1’b0: No collision occurred in the outside of 64 bytes collision window.
1’b1: Collision occurred in the outside of 64 bytes collision window.
TXABT [22]: Transmission Abort
The TXABT indicates the packet incurred 16 consecutive collisions during transmission, and then the
transmission process for this packet is aborted. The transmission abort is only available while EMC is
operating on half-duplex mode.
1’b0: Packet doesn’t incur 16 consecutive collisions during transmission.
1’b1: Packet incurred 16 consecutive collisions during transmission.
NCS [21]: No Carrier Sense
The NCS indicates the MII I/F signal CRS doesn’t active at the start of or during the packet
transmission. The NCS is only available while EMC is operating on half-duplex mode.
1’b0: CRS signal actives correctly.
1’b1: CRS signal doesn’t active at the start of or during the packet transmission.
EXDEF [20]: Defer Exceed
The EXDEF indicates the frame waiting for transmission has deferred over 0.32768ms on 100Mbps
mode, or 3.2768ms on 10Mbps mode. The deferral exceed check will only be done while bit NDEF of
MCMDR is disabled, and EMC is operating on half-duplex mode.
1’b0: Frame waiting for transmission has not deferred over 0.32768ms (100Mbps) or 3.2768ms
(10Mbps).
1’b1: Frame waiting for transmission has deferred over 0.32768ms (100Mbps) or 3.2768ms (10Mbps).
TXCP [19]: Transmission Complete
The TXCP indicates the packet transmission has completed correctly.
1’b0: The packet transmission doesn’t complete.
1’b1: The packet transmission has completed.
DEF [17]: Transmission Deferred
The DEF 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.
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Publication Release Date: January 17, 2005
Revision A.2