PIC12LF1822-I/MF Microchip Technology, PIC12LF1822-I/MF Datasheet - Page 23
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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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3.1.1.2
The program memory can be accessed as data by set-
ting bit 7 of the FSRxH register and reading the match-
ing INDFx register. The MOVIW instruction will place the
lower 8 bits of the addressed word in the W register.
Writes to the program memory cannot be performed via
the INDF registers. Instructions that access the pro-
gram memory via the FSR require one extra instruction
cycle to complete.
ing the program memory via an FSR.
The HIGH directive will set bit<7> if a label points to a
location in program memory.
EXAMPLE 3-2:
3.2
The data memory is partitioned in 32 memory banks
with 128 bytes in a bank. Each bank consists of
(Figure
• 12 core registers
• 20 Special Function Registers (SFR)
• Up to 80 bytes of General Purpose RAM (GPR)
• 16 bytes of common RAM
The active bank is selected by writing the bank number
into the Bank Select Register (BSR). Unimplemented
memory will read as ‘0’. All data memory can be
accessed either directly (via instructions that use the
file registers) or indirectly via the two File Select
Registers
Addressing”
2010 Microchip Technology Inc.
constants
my_function
;THE PROGRAM MEMORY IS IN W
RETLW DATA0
RETLW DATA1
RETLW DATA2
RETLW DATA3
;… LOTS OF CODE…
MOVLW
MOVWF
MOVLW
MOVWF
MOVIW 0[FSR1]
3-2):
Data Memory Organization
(FSR).
Indirect Read with FSR
for more information.
LOW constants
FSR1L
HIGH constants
FSR1H
Example 3-2
ACCESSING PROGRAM
MEMORY VIA FSR
See
;Index0 data
;Index1 data
Section 3.5
demonstrates access-
PIC12F/LF1822/PIC16F/LF1823
“Indirect
Preliminary
3.2.1
The core registers contain the registers that directly
affect
PIC12F/LF1822/16F/LF1823. These registers are
listed below:
• INDF0
• INDF1
• PCL
• STATUS
• FSR0 Low
• FSR0 High
• FSR1 Low
• FSR1 High
• BSR
• WREG
• PCLATH
• INTCON
Note:
the
CORE REGISTERS
The core registers are the first 12
addresses of every data memory bank.
basic
operation
DS41413B-page 23
of
the
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