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PIC16LF1946_13 Datasheet, PDF (21/478 Pages) Microchip Technology – 64-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver and nanoWatt XLP Technology | |||
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3.0 MEMORY ORGANIZATION
These devices contain the following types of memory:
⢠Program Memory
- Configuration Words
- Device ID
- User ID
- Flash Program Memory
⢠Data Memory
- Core Registers
- Special Function Registers
- General Purpose RAM
- Common RAM
⢠Data EEPROM memory(1)
Note 1: The Data EEPROM Memory and the
method to access Flash memory through
the EECON registers is described in
Section 11.0 âData EEPROM and Flash
Program Memory Controlâ.
PIC16(L)F1946/1947
The following features are associated with access and
control of program memory and data memory:
⢠PCL and PCLATH
⢠Stack
⢠Indirect Addressing
3.1 Program Memory Organization
The enhanced mid-range core has a 15-bit program
counter capable of addressing a 32K x 14 program
memory space. Table 3-1 shows the memory sizes
implemented for the PIC16(L)F1946/47 family.
Accessing a location above these boundaries will cause
a wrap-around within the implemented memory space.
The Reset vector is at 0000h and the interrupt vector is
at 0004h (see Figures 3-1 and 3-2).
TABLE 3-1: DEVICE SIZES AND ADDRESSES
Device
Program Memory Space (Words)
PIC16(L)F1946
PIC16(L)F1947
8,192
16,384
Last Program Memory Address
1FFFh
3FFFh
ï£ 2010-2012 Microchip Technology Inc.
DS41414D-page 21
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