KU82596CA33 S N222 Intel, KU82596CA33 S N222 Datasheet - Page 23

• Manufacturer Part Number: KU82596CA33 S N222
• Manufacturer: Intel

Specifications of KU82596CA33 S N222

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

82596CA
The following diagram illustrates the format of the SCP
Writing the Sysbus
When writing the sysbus byte it is important to pay attention to the byte order
22
ISCP ADDRESS
31
A31
A31
X
X X X X X X X X
X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X X 0FFFFF8h
n
When a Little Endian processor is used the sysbus byte is located at byte address 00FFFFF6h (or address
When a processor using Big Endian byte ordering is used the sysbus alternative SCP and ISCP addresses
will be different
a
The sysbus byte is located at 00FFFFF5h
If an alternative SCP address is programmed the sysbus byte should be at byte address n
2 if an alternative SCP address n was programmed)
ODD WORD
The physical address of the ISCP In the 82586 mode bits A31 – A24 are considered to
be zero
A24 A23
A24 are not checked in 82586 mode
X areas are not checked in 82586 mode they must be 0 in all other modes
Figure 15 The System Configuration Pointer
SYSBUS
16
15
0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0FFFFF4h
ISCP ADDRESS
EVEN WORD
A0
0
a
290218 –14
0FFFFFCh
1