MB86967 Datasheet, PDF (37/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

MB86967
(Continued)
Bit no. Bit name
3 JABBER
Operation
Read
Write
2 COL
Read
(Collision Error)
1 16COL
(16 Collision
Error)
Write
Read
0 BUS WR ERR
(Bus Write
Error)
Write
Read
Write
Value
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Function
No jabber
Indicates transmission suspension with continuous
transmission over specified time detected by internal
watchdog timer
Not affected
This bit is cleared.
No collision error
Indicates occurrence of packet collision on network during
packet transmission.
The data link controller performs retransmission automatically
until 16 collisions occur. The count of collision can be
checked by reading bits 7 to 4 of the collision counter register
DLCR4.
Not affected
This bit is cleared.
No 16 collision error
Indicates collisions occurred 16 times continuously during
packet transmission.
The operation after 16 collision errors can be set using bits 2
and 1 of the 16 collision control register BMPR11.
Not affected
This bit is cleared.
No bus write error
Indicates LSI failed to assert RDY signal within 2.15 µs at
writing transmit data from system to transmitter buffer.
In other words, transmit data could not be written because the
transmitter buffer is full. This bit is never set at transmitting
based on the normal operation flow.
Not affected
This bit is cleared.
37