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PIC16F506T-E/SLSQTP 数据表(PDF) 18 Page - Microchip Technology |
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PIC16F506T-E/SLSQTP 数据表(HTML) 18 Page - Microchip Technology |
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18 / 116 page  PIC12F510/16F506 DS41268C-page 16 Preliminary © 2007 Microchip Technology Inc. 4.2 Data Memory Organization Data memory is composed of registers or bytes of RAM. Therefore, data memory for a device is specified by its register file. The register file is divided into two functional groups: Special Function Registers (SFR) and General Purpose Registers (GPR). The Special Function Registers include the TMR0 register, the Program Counter (PCL), the STATUS register, the I/O registers (ports) and the File Select Register (FSR). In addition, Special Function Registers are used to control the I/O port configuration and prescaler options. The General Purpose Registers are used for data and control information under command of the instructions. For the PIC12F510, the register file is composed of 10 Special Function Registers, 6 General Purpose Registers and 32 General Purpose Registers accessed by banking (see Figure 4-2). For the PIC16F506, the register file is composed of 13 Special Function Registers, 3 General Purpose Registers and 64 General Purpose Registers accessed by banking (see Figure 4-3). 4.2.1 GENERAL PURPOSE REGISTER FILE The General Purpose Register file is accessed either directly or indirectly through the File Select Register (FSR). See Section 4.8 “Indirect Data Addressing: INDF and FSR Registers”. FIGURE 4-2: PIC12F510 REGISTER FILE MAP FIGURE 4-3: PIC16F506 REGISTER FILE MAP File Address 00h 01h 02h 03h 04h 05h 06h 07h 1Fh INDF(1) TMR0 PCL STATUS FSR OSCCAL GPIO 0Fh 10h Bank 0 Bank 1 3Fh 30h 20h General Purpose Registers General Purpose Registers General Purpose Registers 08h Addresses map back to addresses in Bank 0. Note 1: Not a physical register. FSR<5> 0 1 CM1CON0 2Fh 09h 0Ah ADCON0 ADRES File Address 00h 01h 02h 03h 04h 05h 06h 07h 1Fh INDF(1) TMR0 PCL STATUS FSR OSCCAL PORTB 10h Bank 0 Bank 1 Bank 2 Bank 3 3Fh 30h 20h 5Fh 50h 40h 7Fh 70h 60h General Purpose Registers General Purpose Registers General Purpose Registers General Purpose Registers General Purpose Registers PORTC 08h Addresses map back to addresses in Bank 0. Note 1: Not a physical register. FSR<6:5> 00 01 10 11 2Fh 4Fh 6Fh 0Dh CM1CON0 CM2CON0 VRCON 09h 0Ah 0Bh ADRES ADCON0 0Ch 0Fh |
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