AT89LP3240 Atmel Corporation, AT89LP3240 Datasheet - Page 143

• Manufacturer Part Number: AT89LP3240
• Manufacturer: Atmel Corporation

Specifications of AT89LP3240

• Flash (kbytes): 32 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 38
• Spi: 1
• Twi (i2c): 1
• Uart: 1
• Adc Channels: 8
• Adc Resolution (bits): 10
• Adc Speed (ksps): 153.8
• Sram (kbytes): 4.25
• Eeprom (bytes): 8192
• Self Program Memory: IAP
• Operating Voltage (vcc): 2.4 to 3.6
• Timers: 3
• Isp: SPI/OCD
• Watchdog: Yes

22. Instruction Set Summary
3706C–MICRO–2/11
The AT89LP3240/6440 is fully binary compatible with the 8051 instruction set. The difference
between the AT89LP3240/6440 and the standard 8051 is the number of cycles required to exe-
cute an instruction. Instructions in the AT89LP3240/6440 may take 1 to 9 clock cycles to
complete. The execution times of most instructions may be computed using
Table 22-1.
Generic Instruction Types
Most arithmetic, logical, bit and transfer instructions
Branches and Calls
Single Byte Indirect (i.e. ADD A, @Ri, etc.)
RET, RETI
MOVC
MOVX
MUL
DIV
MAC
INC DPTR
Arithmetic
ADD A, Rn
ADD A, direct
ADD A, @Ri
ADD A, #data
ADDC A, Rn
ADDC A, direct
ADDC A, @Ri
ADDC A, #data
SUBB A, Rn
SUBB A, direct
SUBB A, @Ri
SUBB A, #data
INC Rn
INC direct
INC @Ri
INC A
DEC Rn
DEC direct
DEC @Ri
DEC A
INC DPTR
Instruction Execution Times and Exceptions
Bytes
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
8051
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
12
24
Clock Cycles
AT89LP3240/6440
AT89LP
Cycle Count Formula
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
2
2
# bytes + 1
Table
# bytes
4/5
2/4
2
3
2
4
9
2
(4)
(2)
22-1.
Hex Code
28-2F
38-3F
98-9F
08-0F
18-1F
26-27
36-37
96-97
06-07
16-17
25
24
35
34
95
94
05
04
15
14
A3
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