NUC910ABN Datasheet, PDF (102/669 Pages) Nuvoton Technology Corporation – 32-bit ARM926EJ-S Based Microcontroller

NUC910ABN
[22]
TXABT
[21]
NCS
[20]
EXDEF
[19]
TXCP
[17]
DEF
[16]
TXINTR
[15:0] TBC
32-BIT ARM926EJ-S BASED MCU
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.
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.
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).
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.
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.
Transmit Interrupt
The TXINTR indicates the packet transmission caused an interrupt
condition.
1’b0: The packet transmission doesn’t cause an interrupt.
1’b1: The packet transmission caused an interrupt.
Transmit Byte Count
The TBC indicates the byte count of the frame stored in the data buffer
pointed by Tx descriptor for transmission.
Publication Release Date: Jun. 18, 2010
102
Revision: A4