IS80C286-20 Intersil, IS80C286-20 Datasheet - Page 54

• Manufacturer Part Number: IS80C286-20
• Description: IC CPU 16BIT 5V 20MHZ 68-PLCC
• Manufacturer: Intersil

Specifications of IS80C286-20

• Processor Type: 80C286 16-Bit
• Speed: 20MHz
• Voltage: 5V
• Mounting Type: Surface Mount
• Package / Case: 68-PLCC
• Lead Free Status / RoHS Status: Contains lead / RoHS non-compliant
• Features: -

80C286 Instruction Set Summary
FUNCTION
LEA = Load EA to Register 10001101 mod
LDS = Load Pointer to DS
LES = Load Pointer to ES
LAHF Load AH with Flags
SAHF = Store AH into Flags 10011110
PUSHF = Push Flags
POPF = Pop Flags
ARlTHMETlC
ADD = Add
Reg/Memory with Register
to
Either
Immediate
ter/Memory
Immediate to Accumulator
ADC = Add with Carry
Reg/Memory with Register
to
Either
Immediate
ter/Memory
Immediate to Accumulator
INC = Increment
Register/Memory
Register
SUB = Subtract
Reg/Memory and Register
to
Either
to
to
Regis-
Regis-
0000010w data
0001010w data
1111111w mod
FORMAT
11000101 mod
11000100 mod
10011111
10011100
10011101
000000dw mod
100000sw mod
000100dw mod
100000sw mod
01000 reg
001010dw mod
(Continued)
r/m
r/m
r/m
r/m
r/m
r/m
r/m
r/m
r/m
000
010
000
reg
reg
reg
reg
reg
reg
data if w =
data if w =
(mod ≠ 11)
(mod ≠ 1)
data
1
data
1
80C286
54
data if
sw = 01
data if
sw = 01
CLOCK COUNT
REAL
ADDRES
S
MODE
3
(Note 59)
7
(Note 59)
7
(Note 59)
2
2
3
2, 7
(Note 59)
3, 7
(Note 59)
3
2, 7
(Note 59)
3, 7
(Note 59)
3
2, 7
(Note 59)
2
2, 7
(Note 59)
5
PRO-
TECTED
VIRTUAL
ADDRESS
MODE
3
(Note 59)
21
(Note 59)
21
(Note 59)
2
2
3
5
2, 7
(Note 59)
3, 7
(Note 59)
3
2, 7
(Note 59)
3, 7
(Note 59)
3
2, 7
(Note 59)
2
2, 7
(Note 59)
COMMENTS
REAL
ADDRES
S
MODE
2
2
2
2
2
2
2
2
2
2, 4
PRO-
TECTED
VIRTUAL
ADDRESS
MODE
9, 10, 11
9, 10, 11
9
9, 15
9
9
9
9
9
9