AT89LP3240 Atmel Corporation, AT89LP3240 Datasheet - Page 150

• 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

22.1.7
22.1.8
150
Description: The forty bits in the M register are shifted one bit to the left. Bit 0 is cleared. No flags are affected.
Description: The MOVC instructions load the Accumulator with a code byte or constant from program memory. The address
Operation: LSL
Operation: MOVC
Encoding:
Encoding:
AT89LP3240/6440
Function: Shift MAC Accumulator Left Logically
Function: Move code byte relative to Alternate Data Pointer
LSL M
MOVC A, @A+/DPTR
Example: The M register holds the value 0C5B1A29384H. The following instruction,
Example: A value between 0 and 3 is in the Accumulator. The following instructions will translate the value in the
Cycles: 2
Cycles: 4
Bytes: 2
Bytes: 2
LSL M
leaves the M register holding the value 8B63452708H.
(M
(M
of the byte fetched is the sum of the original unsigned 8-bit Accumulator contents and the contents of the
unselected Data Pointer. The base register is not altered. Sixteen-bit addition is performed so a carry-out from
the low-order eight bits may propagate through higher-order bits. No flags are affected.
Accumulator to one of four values defined by the DB (define byte) directive.
TABLE:
If the subroutine is called with the Accumulator equal to 01H, it returns with 77H in the Accumulator.
IF (DPS) = 0
THEN
ELSE
n+1
0
) ← 0
A5
A5
MOV
MOVC
RET
(A) ← ( (A) + (DPTR1) )
(A) ← ( (A) + (DPTR0) )
) ← (M
DB
DB
DB
DB
n
) n = 0 - 38
66H
/DPTR, #TABLE
A, @A+PC
77H
88H
99H
0
1
0
0
1
0
0
1
0
0
0
0
1
1
1
1
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