AT89LP4052 Atmel Corporation, AT89LP4052 Datasheet - Page 53

• Manufacturer Part Number: AT89LP4052
• Manufacturer: Atmel Corporation

Specifications of AT89LP4052

• Flash (kbytes): 4 Kbytes
• Max. Operating Frequency: 20 MHz
• Cpu: 8051-1C
• Max I/o Pins: 15
• Spi: 1
• Uart: 1
• Sram (kbytes): 0.25
• Operating Voltage (vcc): 2.4 to 5.5
• Timers: 2
• Isp: SPI
• Watchdog: Yes

3547J–MICRO–10/09
Table 22-1.
Table 22-2.
Instruction Type
Most arithmetic, logical, bit and transfer instructions
Branches and Calls
Single Byte Indirect (i.e. ADD A, @Ri, etc.)
RET, RETI
MOVC
MUL
DIV
INC DPTR
Arithmetic Instruction
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
MUL AB
DIV AB
DA A
Generic Instruction Execution Times and Exceptions
Detailed Arithmetic Instruction Summary
Bytes
1
2
1
2
1
2
1
2
1
2
1
2
1
2
1
1
1
2
1
1
1
1
1
1
AT89LP2052/LP4052
8051
12
12
12
12
12
12
12
12
12
12
12
12
12
24
48
12
12
12
12
12
12
12
12
48
Clock Cycles
LP2052
1
2
2
2
1
2
2
2
1
2
2
2
1
2
2
1
1
2
2
1
2
2
4
1
Cycle Count
# bytes + 1
# bytes
Hex Code
2
4
3
2
4
2
28-2F
38-3F
98-9F
08-0F
18-1F
26-27
36-37
96-97
06-07
16-17
A3
A4
D4
25
24
35
34
95
94
05
04
15
14
84
53