Break IC PIC16F884 Code

The PIC16F884 is covered by this data sheet. The PIC16F884 is available in 28-pin PDIP, SOIC, SSOP and QFN packages. The PIC16F884 is available in a 40-pin PDIP and 44-pin QFN and TQFP packages when Break IC. Figure 1-1 shows the block diagram of PIC16F882/883/886 and Figure 1-2 shows a block diagram of the PIC16F884/887 device.

Table 1-1 and Table 1-2 show the corresponding pinout descriptions. The PIC16F882/883/884/886/887 has a 13-bit program counter capable of addressing a 2K x 14 (0000h-07FFh) for the PIC16F882, 4K x 14 (0000h-0FFFh) for the PIC16F883/PIC16F884, and 8K x 14 (0000h-1FFFh) for the PIC16F886/PIC16F887 program memory space.

Accessing a location above these boundaries will cause a wrap-around within the first 8K x 14 space. The Reset vector is at 0000h and the interrupt vector is at 0004h.

The data memory is partitioned into four banks which contain the General Purpose Registers (GPR) and the Special Function Registers (SFR). The Special Function Registers are located in the first 32 locations of each bank. The General Purpose Registers, implemented as static RAM, are located in the last 96 locations of each Bank.

Register locations F0h-FFh in Bank 1, 170h-17Fh in Bank 2 and 1F0h-1FFh in Bank 3, point to addresses 70h-7Fh in Bank 0. The actual number of General Purpose Resisters (GPR) implemented in each Bank depends on the device to Copy Chip PIC18F252 Flash. Details are shown in Figures 2-5 and 2-6. All other RAM is unimplemented and returns ‘0’ when read. RP<1:0> of the STATUS register are the bank select bits for the purpose:

RP1 RP0

→Bank 0 is selected

→Bank 1 is selected

→Bank 2 is selected

→Bank 3 is selected

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