Microchip Technology AC244055 数据表
2011-2013 Microchip Technology Inc.
DS40001574C-page 21
PIC16(L)F1938/9
3.0
MEMORY ORGANIZATION
These devices contain the following types of memory:
• Program Memory
• Program Memory
- Configuration Words
- Device ID
- User ID
- Flash Program Memory
- Device ID
- User ID
- Flash Program Memory
• Data Memory
- Core Registers
- Special Function Registers
- General Purpose RAM
- Common RAM
- Special Function Registers
- General Purpose RAM
- Common RAM
• Data EEPROM memory
(1)
The following features are associated with access and
control of program memory and data memory:
• PCL and PCLATH
• Stack
• Indirect Addressing
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.
counter capable of addressing a 32K x 14 program
memory space.
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
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
Note 1: The Data EEPROM Memory and the
method to access Flash memory through
the EECON registers is described in
the EECON registers is described in
.
TABLE 3-1:
DEVICE SIZES AND ADDRESSES
Device
Program Memory Space (Words)
Last Program Memory Address
PIC16F1938
/
PIC16LF1938
16,384
3FFFh
PIC16F1939
/
PIC16LF1939
16,384
3FFFh