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PIC16 датащи(PDF) 15 Page - Microchip Technology |
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PIC16 датащи(HTML) 15 Page - Microchip Technology |
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15 / 418 page ![]() 2011-2013 Microchip Technology Inc. DS40001609C-page 15 PIC16(L)F1508/9 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 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. 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) Last Program Memory Address High-Endurance Flash Memory Address Range (1) PIC16LF1508 PIC16F1508 4,096 0FFFh 0F80h-0FFFh PIC16LF1509 PIC16F1509 8,192 1FFFh 1F80h-1FFFh Note 1: High-endurance Flash applies to low byte of each address in the range. |
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