PIC16F1938_13 Datasheet, PDF (21/488 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers with LCD Driver

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 “Data EEPROM and Flash
Program Memory Control”.
PIC16(L)F1938/9
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)F1938/9 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 Figure 3-1).
TABLE 3-1: DEVICE SIZES AND ADDRESSES
Device
Program Memory Space (Words)
PIC16F1938/PIC16LF1938
PIC16F1939/PIC16LF1939
16,384
16,384
Last Program Memory Address
3FFFh
3FFFh
 2011-2013 Microchip Technology Inc.
DS40001574C-page 21