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PIC16F1507-E/SS. 数据表(PDF) 32 Page - Microchip Technology |
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PIC16F1507-E/SS. 数据表(HTML) 32 Page - Microchip Technology |
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32 / 278 page ![]() PIC16(L)F1507 DS40001586D-page 32 2011-2015 Microchip Technology Inc. FIGURE 3-5: ACCESSING THE STACK EXAMPLE 2 FIGURE 3-6: ACCESSING THE STACK EXAMPLE 3 STKPTR = 0x00 Return Address This figure shows the stack configuration after the first CALL or a single interrupt. If a RETURN instruction is executed, the return address will be placed in the Program Counter and the Stack Pointer decremented to the empty state (0x1F). 0x0F 0x0E 0x0D 0x0C 0x0B 0x0A 0x09 0x08 0x07 0x06 0x04 0x05 0x03 0x02 0x01 0x00 TOSH:TOSL Rev. 10-000043B 7/30/2013 STKPTR = 0x06 After seven CALLsorsix CALLs and an interrupt, the stack looks like the figure on the left. A series of RETURN instructions will repeatedly place the return addresses into the Program Counter and pop the stack. Return Address 0x0F 0x0E 0x0D 0x0C 0x0B 0x0A 0x09 0x08 0x07 0x06 0x04 0x05 0x03 0x02 0x01 0x00 Return Address Return Address Return Address Return Address Return Address Return Address TOSH:TOSL Rev. 10-000043C 7/30/2013 |
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