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PIC16LC505-04E/SL 数据表(PDF) 13 Page - Microchip Technology |
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PIC16LC505-04E/SL 数据表(HTML) 13 Page - Microchip Technology |
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13 / 80 page  © 1998 Microchip Technology Inc. Preliminary DS40192A-page 13 PIC16C505 4.2.2 SPECIAL FUNCTION REGISTERS The Special Function Registers (SFRs) are registers used by the CPU and peripheral functions to control the operation of the device (Table 4-1). The special registers can be classified into two sets. The special function registers associated with the “core” functions are described in this section. Those related to the operation of the peripheral features are described in the section for each peripheral feature. TABLE 4-1: SPECIAL FUNCTION REGISTER (SFR) SUMMARY Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on Power-On Reset Value on MCLR and WDT Reset Value on Wake-up on Pin Change 00h INDF Uses contents of FSR to address data memory (not a physical register) xxxx xxxx uuuu uuuu uuuu uuuu 01h TMR0 8-bit real-time clock/counter xxxx xxxx uuuu uuuu uuuu uuuu 02h(1) PCL Low order 8 bits of PC 1111 1111 1111 1111 1111 1111 03h STATUS RBWUF — PAO TO PD Z DC C 0001 1xxx 000q quuu 100q quuu 04h FSR Indirect data memory address pointer 110x xxxx 11uu uuuu 11uu uuuu 05h OSCCAL CAL5 CAL4 CAL3 CAL2 CAL1 CAL0 — — 1000 00-- uuuu uu-- uuuu uu-- N/A TRISB — — I/O control registers --11 1111 --11 1111 --11 1111 N/A TRISC — — I/O control registers --11 1111 --11 1111 --11 1111 N/A OPTION RBWU RBPU TOCS TOSE PSA PS2 PS1 PS0 1111 1111 1111 1111 1111 1111 06h PORTB — — RB5 RB4 RB3 RB2 RB1 RB0 --xx xxxx --uu uuuu --uu uuuu 07h PORTC — — RC5 RC4 RC3 RC2 RC1 RC0 --xx xxxx --uu uuuu --uu uuuu Legend: Shaded cellls not used by Port Registers, read as ‘0’, — = unimplemented, read as ‘0’, x = unknown, u = unchanged. |
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