KU82596DX25 S Z714 Intel, KU82596DX25 S Z714 Datasheet - Page 24

• Manufacturer Part Number: KU82596DX25 S Z714
• Manufacturer: Intel

Specifications of KU82596DX25 S Z714

• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.5V
• Operating Supply Voltage (min): 4.5V
• Mounting: Surface Mount
• Operating Temperature (max): 85C
• Operating Temperature (min): 0C
• Operating Temperature Classification: Commercial
• Lead Free Status / Rohs Status: Not Compliant

82596DX SX
STATION DIAGNOSTICS
AND SELF-TEST
The 82596 provides a large set of diagnostic and
network management functions These include inter-
nal and external loopback and time domain reflec-
tometry for locating fault points in the network cable
The 82596 ensures software reliability by dumping
the contents of the 82596 internal registers into sys-
tem memory The 82596 has a self-test mode that
enables it to run an internal self-test and place the
results in system memory
82586 SOFTWARE COMPATIBILITY
The 82596 has a software-compatible state in which
all its memory structures are compatible with the
82586 memory structure This includes all the Action
Commands the Receive Frame Area (including the
RFD Buffer Descriptors and Data Buffers) the Sys-
tem Control Block and the initialization procedures
There are two minor differences between the 82596
in the 82586-Compatible memory structure and the
82586
INITIALIZING THE 82596
A Reset command is issued to the 82596 to prepare
it for normal operation The 82596 is initialized
through two data structures that are addressed by
24
When the internal and external loopback bits in
the Configure command are set to 11 the 82596
is in external loopback and the LPBK pin is acti-
vated in the 82586 this situation would produce
internal loopback
During a Dump command both the 82596 and
82586 dump the same number of bytes however
the data format is different
two pointers
(SCP) and the Intermediate System Configuration
Pointer (ISCP) The initialization procedure begins
when a Channel Attention signal is asserted after
RESET The 82596 uses the address of the double
word that contains the SCP as a default
00FFFFF4h Before the CA signal is asserted this
default address can be changed to any other avail-
able address by asserting the PORT pin and provid-
ing the desired address over the D
address bus Pins D
alternative address must be aligned to 16 byte
boundaries All addresses sent to the 82596 must be
word aligned which means that all pointers and
memory structures must start on an even address
(A
SYSTEM CONFIGURATION POINTER
(SCP)
The SCP contains the SYSBUS byte and the loca-
tion of the next structure of the initialization process
the ISCP The following parameters are selected in
the SYSBUS
Byte ordering is determined by the LE BE pin
LE BE
LE BE
In the following X indicates a bit not checked in
82586 mode This bit must be set to 0 in all other
modes
0
The 82596 operation mode
The Bus Throttle timer triggering method
Lock enabled
Interrupt polarity
Big Endian 32-bit entity mode
e
zero)
e
e
1 selects little endian byte ordering and
0 selects big endian byte ordering
the System Configuration Pointer
3
– D
NOTE
0
must be 0010 i e any
31
–D
4
pins of the