Intel 82559 用户手册
64
Intel 8255x 10/100 Mbps Ethernet Controller Family Open Source Software Developer Manual
Host Software Interface
Note: The shaded bits in the table above have different meaning for the 82558 B-step.
Table 39. 82558 Configuration Byte Map
Byte
D7
D6
D5
D4
D3
D2
D1
D0
0
0
0
Byte Count
1
0
Transmit FIFO Limit
Receive FIFO Limit
2
Adaptive Interframe Spacing
3
0
0
0
0
Term
Write on
CL
Write on
CL
Read Al
Enable
Enable
Type
Enable
Enable
MWI
Enable
Enable
4
0
Receive DMA Minimum Byte Count
5
DMBC
Enable
Enable
Transmit DMA Maximum Byte Count
6
Save Bad
Frames
Frames
Discard
Overruns
Overruns
Ext. Stat.
Count
Count
Extended
Transmit
CB
Transmit
CB
CI
Interrupt
Interrupt
0
1
0
7
Dynamic
TBD
TBD
2 Frames
in FIFO
in FIFO
0
0
0
Underrun Retry
Discard
Short
Receive
Short
Receive
8
CSMA
Disable
Disable
0
0
0
0
0
0
1
9
MC Match
Wake-up
Enable
Wake-up
Enable
ARP
Wake-up
Enable
Wake-up
Enable
Link
Wake-up
Enable
Wake-up
Enable
VLAN
ARP (0)
ARP (0)
0
0
0
0
10
Loopback
Preamble Length
NSAI
1
1
0
11
0
0
0
0
0
0
0
0
12
Interframe Spacing
0
0
0
1
13
00000000 IP_address_Low
14
11110010 IP_address_High
15
CRS and
CDT
CDT
1
0
Ignore
U/L
U/L
1
Wait After
Win
Win
Broadcast
Disable
Disable
Promis-
cuous
cuous
16
FC Delay Least Significant Byte
17
FC Delay Most Significant Byte
18
1
Priority FC Threshold
Long
Receive
OK
Receive
OK
Receive
CRC
Transfer
CRC
Transfer
Padding
Stripping
19
Automatic
FDX
FDX
Force
FDX
FDX
Reject FC
Receive
FC
Restart
FC
Restart
Receive
FC
Restop
FC
Restop
Transmit
FC
FC
Magic
Packet
Wake-up
Packet
Wake-up
IA
Address
Match
Wake-up
Enable (0)
Address
Match
Wake-up
Enable (0)
20
0
Multiple
IA
IA
Priority
FC
Location
FC
Location
1
1
1
1
1
21
0
0
0
0
Multicast
All
All
1
0
1