E F E c o n f i g u r a t i o n

Bits

Access

Mnemonic

Reset

Description

 

 

 

 

 

D15

R

TXOK

0

Packet transmitted OK

 

 

 

 

Set to 1 when the last Ethernet packet was

 

 

 

 

transmitted without error.

 

 

 

 

Set to 0 when the last Ethernet packet was

 

 

 

 

not transmitted.

 

 

 

 

When the bit is set to 1, the frame has been

 

 

 

 

delivered and emptied from the transmit FIFO.

 

 

 

 

TXREGE and TXFIFOH in the Ethernet General

 

 

 

 

Status register become active when the FIFO is

 

 

 

 

ready to start receiving the next packet.

 

 

 

 

TXBC in the Ethernet General Status register

 

 

 

 

becomes active when TXOK is set.

 

 

 

 

 

D14

R

TXBR

0

Broadcast packet transmitted

 

 

 

 

Set to 1 to indicate that the last Ethernet packet

 

 

 

 

transmitted was a broadcast packet.

 

 

 

 

 

D13

R

TXMC

0

Multicast packet transmitted

 

 

 

 

Set to 1 to indicate that the last Ethernet packet

 

 

 

 

transmitted was a multicast packet.

 

 

 

 

 

D12

R

TXAL

0

Transmit abort — late collision

 

 

 

 

Set to 1 to indicate that the last Ethernet packet

 

 

 

 

was not transmitted successfully; packet

transmission was aborted due to a late collision problem.

When this bit is set, the transmit frame is automatically flushed from the transmit FIFO. TXREGE and TXFIFOH in the Ethernet General Status register become active when the FIFO is ready to start receiving the next packet.

TXBC in the Ethernet General Status register becomes active when TXAL is set.

Table 58: Ethernet Transmit Status register bit definition

1 7 0

N S 7 5 2 0 H a r d w a r e R e f e r e n c e , R e v . D 0 3 / 2 0 0 6

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Digi NS7520 manual Packet transmitted OK, Broadcast packet transmitted, Multicast packet transmitted