PIC16F1829-E/ML Microchip Technology, PIC16F1829-E/ML Datasheet - Page 24
![14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 18 I/0, Enhanced Mid Range Core 20 Q](/photos/16/3/160361/qfn20_sml.jpg)
PIC16F1829-E/ML
Manufacturer Part Number
PIC16F1829-E/ML
Description
14 KB Flash, 1K Bytes RAM, 32 MHz Int. Osc, 18 I/0, Enhanced Mid Range Core 20 Q
Manufacturer
Microchip Technology
Series
PIC® XLP™ mTouch™ 16Fr
Datasheet
1.PIC16LF1829-ISO.pdf
(420 pages)
Specifications of PIC16F1829-E/ML
Core Processor
PIC
Core Size
8-Bit
Speed
32MHz
Connectivity
I²C, LIN, SPI, UART/USART
Peripherals
Brown-out Detect/Reset, POR, PWM, WDT
Number Of I /o
17
Program Memory Size
14KB (8K x 14)
Program Memory Type
FLASH
Eeprom Size
256 x 8
Ram Size
1K x 8
Voltage - Supply (vcc/vdd)
1.8 V ~ 5.5 V
Data Converters
A/D 12x10b
Oscillator Type
Internal
Operating Temperature
-40°C ~ 125°C
Package / Case
*
Processor Series
PIC16F182x
Core
PIC
Data Bus Width
8 bit
Data Ram Size
1 KB
Interface Type
I2C, SPI, USART
Maximum Clock Frequency
32 MHz
Number Of Programmable I/os
18
Number Of Timers
5
Operating Supply Voltage
1.8 V to 5.5 V
Maximum Operating Temperature
+ 125 C
Mounting Style
SMD/SMT
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
Lead Free Status / RoHS Status
Lead free / RoHS Compliant
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PIC16F/LF1825/1829
FIGURE 3-1:
DS41440A-page 24
Program
Memory
On-chip
Interrupt, RETFIE
RETURN, RETLW
CALL, CALLW
Rollover to Page 0
Rollover to Page 3
Interrupt Vector
Stack Level 15
Stack Level 0
Stack Level 1
Reset Vector
PROGRAM MEMORY MAP
AND STACK FOR
PIC16F/LF1825/1829
PC<14:0>
Page 1
Page 2
Page 3
Page 0
15
0000h
0004h
0005h
7FFFh
07FFh
0800h
0FFFh
1000h
17FFh
1800h
1FFFh
2000h
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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