MB86967 Datasheet, PDF (39/129 Pages) Fujitsu Component Limited. – LAN Controller with PC Card, ISA Bus, and General-purpose Bus Interfaces

MB86967
(Continued)
Bit no. Bit name Operation
4 RMT RST
Read
(Remote Reset)
Write
3 RX SRT PKT
(Short Packet)
Read*
Write
2 ALG ERR
(Alignment
Error)
Read*
Write
1 CRC ERR
(CRC Error)
Read*
Write
0 OVRFLO
Read*
(Overflow Error)
Write
Value
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
0
1
Function
The received packet is not a remote reset packet.
Indicates value of data length field in received packet is
0900H.
This bit is set only when the ENA RMT RST bit of DLCR5 is
set and a physical address match occurs; it is not set for the
multicast address and broadcast address. It is also not set
when the ENA SRT PKT bit of DLCR5 is set.
Not affected
This bit is cleared. It is also cleared automatically at the start
of receiving the next packet.
No short packet error
Indicates data length (address + data length + data) of
received packet not more than minimum data length
(60 bytes).
This bit is set for not more than 6 bytes when the ENA SRT
PKT bit of DLCR5 is set. It is not set when a collision occurs
at the self-TXPKT.
Not affected
This bit is cleared.
No alignment error
Indicates CRC of received packet incorrect and bit count of
received data not multiple of 8
Not affected
This bit is cleared.
No CRC error
Indicates CRC of received packet incorrect.
This bit is not set when a collision occurs at the self-TXPKT.
Not affected
This bit is cleared.
No overflow error
Indicates that data erased because data length of received
packet larger than free capacity of receiver buffer memory.
Even when this bit is set, data is received normally when the
data length of the next packet is smaller than the free capacity
of the receiver buffer memory. This bit is set to indicate that
the receiver buffer memory is almost full; transfer data
immediately from the buffer to the host system. This bit is not
set in the loopback mode.
Not affected
This bit is cleared.
* : The bit 3 to bit 0 are cleared when the new packet is received.
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