A80386DX33 Intel, A80386DX33 Datasheet - Page 44

• Manufacturer Part Number: A80386DX33
• Description: IC MPU 32-BIT 5V 33MHZ 132-PGA
• Manufacturer: Intel

Specifications of A80386DX33

• Processor Type: 386DX
• Features: 32-bit
• Speed: 33MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 132-PGA
• Family Name: Intel386 DX
• Device Core Size: 32b
• Frequency (max): 33MHz
• Supply Voltage 1 (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Supply Voltage (min): 4.75V
• Operating Temp Range: 0C to 85C
• Operating Temperature Classification: Commercial
• Mounting: Through Hole
• Pin Count: 132
• Package Type: PGA
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Other names: 807129

Intel386
When operating in Protected Mode the segment
base limit and other attributes within the segment
cache registers are defined as shown in Figure 4-12
In Protected Mode each of these fields are defined
44
Key
Y
N
d
p
r
w
–
Figure 4-12 Segment Descriptor Caches for Protected Mode (Loaded per Descriptor)
TM
e
e
e
e
e
e
e
per segment descriptor but descriptor must indicate ‘‘readable’’ to avoid exception 13
(exception 12 in case of SS)
(special case for SS)
(special case for SS)
per segment descriptor
per segment descriptor descriptor must indicate ‘‘present’’ to avoid exception 11
fixed yes
does not apply to that segment cache register
DX MICROPROCESSOR
fixed no
per segment descriptor but descriptor must indicate ‘‘writable’’ to avoid exception 13
according to the contents of the segment descriptor
indexed by the selector value loaded into the seg-
ment register
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