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PIC16F877ATI/ML 数据表(PDF) 22 Page - Microchip Technology |
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PIC16F877ATI/ML 数据表(HTML) 22 Page - Microchip Technology |
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22 / 234 page  PIC16F87XA DS39582B-page 20 2003 Microchip Technology Inc. Bank 1 80h(3) INDF Addressing this location uses contents of FSR to address data memory (not a physical register) 0000 0000 31, 150 81h OPTION_REG RBPU INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 23, 150 82h(3) PCL Program Counter (PC) Least Significant Byte 0000 0000 30, 150 83h(3) STATUS IRP RP1 RP0 TO PD ZDC C 0001 1xxx 22, 150 84h(3) FSR Indirect Data Memory Address Pointer xxxx xxxx 31, 150 85h TRISA — — PORTA Data Direction Register --11 1111 43, 150 86h TRISB PORTB Data Direction Register 1111 1111 45, 150 87h TRISC PORTC Data Direction Register 1111 1111 47, 150 88h(4) TRISD PORTD Data Direction Register 1111 1111 48, 151 89h(4) TRISE IBF OBF IBOV PSPMODE — PORTE Data Direction bits 0000 -111 50, 151 8Ah(1,3) PCLATH — — — Write Buffer for the upper 5 bits of the Program Counter ---0 0000 30, 150 8Bh(3) INTCON GIE PEIE TMR0IE INTE RBIE TMR0IF INTF RBIF 0000 000x 24, 150 8Ch PIE1 PSPIE(2) ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE 0000 0000 25, 151 8Dh PIE2 —CMIE — EEIE BCLIE — — CCP2IE -0-0 0--0 27, 151 8Eh PCON — — — — — —POR BOR ---- --qq 29, 151 8Fh — Unimplemented — — 90h — Unimplemented — — 91h SSPCON2 GCEN ACKSTAT ACKDT ACKEN RCEN PEN RSEN SEN 0000 0000 83, 151 92h PR2 Timer2 Period Register 1111 1111 62, 151 93h SSPADD Synchronous Serial Port (I2C mode) Address Register 0000 0000 79, 151 94h SSPSTAT SMP CKE D/A PS R/W UA BF 0000 0000 79, 151 95h — Unimplemented — — 96h — Unimplemented — — 97h — Unimplemented — — 98h TXSTA CSRC TX9 TXEN SYNC — BRGH TRMT TX9D 0000 -010 111, 151 99h SPBRG Baud Rate Generator Register 0000 0000 113, 151 9Ah — Unimplemented — — 9Bh — Unimplemented — — 9Ch CMCON C2OUT C1OUT C2INV C1INV CIS CM2 CM1 CM0 0000 0111 135, 151 9Dh CVRCON CVREN CVROE CVRR — CVR3 CVR2 CVR1 CVR0 000- 0000 141, 151 9Eh ADRESL A/D Result Register Low Byte xxxx xxxx 133, 151 9Fh ADCON1 ADFM ADCS2 — — PCFG3 PCFG2 PCFG1 PCFG0 00-- 0000 128, 151 TABLE 2-1: SPECIAL FUNCTION REGISTER SUMMARY (CONTINUED) Address Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0 Value on: POR, BOR Details on page: Legend: x = unknown, u = unchanged, q = value depends on condition, - = unimplemented, read as ‘0’, r = reserved. Shaded locations are unimplemented, read as ‘0’. Note 1: The upper byte of the program counter is not directly accessible. PCLATH is a holding register for the PC<12:8>, whose contents are transferred to the upper byte of the program counter. 2: Bits PSPIE and PSPIF are reserved on PIC16F873A/876A devices; always maintain these bits clear. 3: These registers can be addressed from any bank. 4: PORTD, PORTE, TRISD and TRISE are not implemented on PIC16F873A/876A devices, read as ‘0’. 5: Bit 4 of EEADRH implemented only on the PIC16F876A/877A devices. |
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