82596DX Datasheet, PDF (49/77 Pages) Intel Corporation – HIGH-PERFORMANCE 32-BIT LOCAL AREA NETWORK COPROCESSOR

82596DX SX
DUMP
This command causes the contents of various 82596 registers to be placed in a memory area specified by the
user It is supplied as a 82596 self-diagnostic tool and to provide registers of interest to the user The format
of the DUMP command is
82586 and 32-Bit Segmented Modes
31
ODD WORD
16 15
EVEN WORD
0
EL S I X X X X X X X X X X 1 1 0 C B OK 0 0 0 0 0 0 0 0 0 0 0 0 0
A15
BUFFER OFFSET
A0 A15
LINK OFFSET
A0
Linear Mode
31
ODD WORD
16 15
EVEN WORD
0
EL S I X X X X X X X X X X 1 1 0 C B OK 0 0 0 0 0 0 0 0 0 0 0 0 0
A31
LINK ADDRESS
A0
A31
BUFFER ADDRESS
A0
Figure 33 Dump
where
LINK ADDRESS
EL B C I S
OK
Bits 19–28
CMD (Bits 16–18)
BUFFER POINTER
As per standard Command Block (see the NOP command for details)
Indicates error free completion
Reserved (0 in the 32-bit Segmented and Linear Modes)
The Dump command Value 6h
In the 82586 and 32-bit Segmented modes this is the 16-bit-offset portion of the
dump area address In the Linear mode this is the 32-bit linear address of the dump
area
Dump Area Information Format
 The 82596 is not Dump compatible with the 82586 because of the 32-bit internal architecture In 82586
mode the 82596 will dump the same number of bytes as the 82586 The compatible data will be marked
with an asterisk
 In 82586 mode the dump area is 170 bytes
 The dump area format of the 32-bit Segmented and Linear modes is described in Figure 35
 The size of the dump area of the 32-bit Segmented and Linear modes is 304 bytes
 When the dump is executed by the Port command an extra word will be appended to the Dump Area The
extra word is a copy of the Dump Area status word (containing the C B and OK bits) The C and OK bits
are set when the 82596 has completed the Port Dump command
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