參數(shù)資料
型號(hào): 82596DX
廠商: Intel Corp.
英文描述: HIGH-PERFORMANCE 32-BIT LOCAL AREA NETWORK COPROCESSOR
中文描述: 高性能的32位局域網(wǎng)協(xié)處理器
文件頁(yè)數(shù): 38/77頁(yè)
文件大?。?/td> 787K
代理商: 82596DX
82596DX/SX
31
16
ODD WORD
15
0
EVEN WORD
EL S
I
0
0
0
0
0
0
0
0
0
0
0
1
0
C
B OK A
0
0
0
0
0
0
0
0
0
0
0
0 0
A31
A0
LINK ADDRESS
4
Byte 3
Byte 2
Byte 1
Byte 0
8
Byte 7
Byte 6
Byte 5
Byte 4
12
Byte 11
Byte 10
Byte 9
Byte 8
16
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
X
Byte 13
Byte 12
20
Figure 25. CONFIGUREDLinear Mode
LINK ADDRESS, D As per standard Command Block (see the NOP command for details)
EL, B, C, I, S
A
D Indicates that the command was abnormally terminated due to a CU Abort control com-
mand. If 1, then the command was aborted and if necessary it should be repeated. If this
bit is 0, the command was not aborted.
Bits 19–28
D Reserved (zero in the 32-Bit Segmented and Linear Modes)
CMD (bits 16–18) D The CONFIGURE command. Value: 2h.
The interpretation of the fields follows:
7
6
5
4
3
2
1
0
P
X
X
X
BYTE COUNT
BYTE 0
BYTE CNT (Bits 0–3)
Byte Count. Number of bytes, including this one, that hold pa-
rameters to be configured.
PREFETCHED (Bit 7)
Enable the 82596 to write the prefetched bit in all prefetch
RBDs.
NOTE:
The P bit is valid only in the new memory structure modes. In 82586 mode this bit is disabled
(i.e., no prefetched mark).
7
0
MONITOR
X
X
FIFO LIMIT
BYTE 1
FIFO Limit (Bits 0–3)
MONITOR
Y
(Bits 6–7)
FIFO limit.
Receive monitor options. If the Byte Count of the configure
command is less than 12 bytes then these Monitor bits are
ignored.
DEFAULT: C8h
7
0
SAV BF
1
0
0
0
0
RESUMEDRD
0
BYTE
2
RESUMEDRD (Bit 1)
0D The 82596 does not reread the next CB on the list when a CU RESUME
Control Command is issued.
1D The 82596 will reread the next CB on the list when a CU RESUME
Control Command is issued. This is available only on the 82596B step-
ping.
SAV BF (Bit 7)
0D Received bad frames are not saved in the memory.
1D Received bad frames are saved in the memory.
DEFAULT: 40h
38
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