PIC12LF1822-I/MF Microchip Technology, PIC12LF1822-I/MF Datasheet - Page 22
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PIC12LF1822-I/MF
Manufacturer Part Number
PIC12LF1822-I/MF
Description
IC, 8BIT MCU, PIC12, 32MHZ, DFN-8
Manufacturer
Microchip Technology
Series
PIC® XLP™ 12Fr
Datasheets
1.PIC12F1822T-ISN.pdf
(404 pages)
2.PIC12F1822T-ISN.pdf
(10 pages)
3.PIC12F1822-IMF.pdf
(398 pages)
Specifications of PIC12LF1822-I/MF
Controller Family/series
PIC12
No. Of I/o's
6
Eeprom Memory Size
256Byte
Ram Memory Size
128Byte
Cpu Speed
32MHz
No. Of Timers
3
Core Size
8 Bit
Program Memory Size
3.5KB
Core Processor
PIC
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
6
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
128 x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 3.6 V
Data Converters
A/D 4x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 85°C
Package / Case
8-DFN
Processor Series
PIC12LF
Core
PIC
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant, Lead free / RoHS Compliant
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
PIC12LF1822-I/MF
Manufacturer:
MICROCHIP
Quantity:
3 600
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- Download datasheet (4Mb)
PIC12F/LF1822/PIC16F/LF1823
FIGURE 3-1:
DS41413B-page 22
Program
Memory
On-chip
Interrupt, RETFIE
RETURN, RETLW
CALL, CALLW
Rollover to Page 0
Rollover to Page 0
Wraps to Page 0
Wraps to Page 0
Wraps to Page 0
Interrupt Vector
Stack Level 15
Stack Level 0
Stack Level 1
Reset Vector
PROGRAM MEMORY MAP
AND STACK FOR
PIC12F/LF1822/16F/LF1823
PC<14:0>
Page 0
15
0000h
0004h
0005h
07FFh
0800h
7FFFh
Preliminary
3.1.1
There are two methods of accessing constants in pro-
gram memory. The first method is to use tables of
RETLW instructions. The second method is to set an
FSR to point to the program memory.
3.1.1.1
The RETLW instruction can be used to provide access
to tables of constants. The recommended way to create
such a table is shown in
EXAMPLE 3-1:
The BRW instruction makes this type of table very sim-
ple to implement. If your code must remain portable
with previous generations of microcontrollers, then the
BRW instruction is not available so the older table read
method must be used.
constants
my_function
BRW
RETLW DATA0
RETLW DATA1
RETLW DATA2
RETLW DATA3
;… LOTS OF CODE…
MOVLW
CALL constants
;… THE CONSTANT IS IN W
READING PROGRAM MEMORY AS
DATA
RETLW Instruction
DATA_INDEX
RETLW INSTRUCTION
2010 Microchip Technology Inc.
Example
;Add Index in W to
;program counter to
;select data
;Index0 data
;Index1 data
3-1.
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