Datasheet
2006-2012 Microchip Technology Inc. DS41291G-page 29
PIC16F882/883/884/886/887
TABLE 2-2: PIC16F882/883/884/886/887 SPECIAL FUNCTION REGISTERS SUMMARY BANK 1
Addr Name Bit 7 Bit 6 Bit 5 Bit 4 Bit 3 Bit 2 Bit 1 Bit 0
Value on
POR, BOR
Value on all
other Resets
Bank 1
80h INDF Addressing this location uses contents of FSR to address data memory (not a physical register) xxxx xxxx xxxx xxxx
81h OPTION_REG RBPU
INTEDG T0CS T0SE PSA PS2 PS1 PS0 1111 1111 1111 1111
82h PCL Program Counter’s (PC) Least Significant Byte 0000 0000 0000 0000
83h STATUS IRP RP1 RP0 TO
PD ZDCC0001 1xxx 000q quuu
(5)
84h FSR Indirect Data Memory Address Pointer xxxx xxxx uuuu uuuu
85h TRISA TRISA7 TRISA6 TRISA5 TRISA4 TRISA3 TRISA2 TRISA1 TRISA0 1111 1111 1111 1111
86h TRISB TRISB7 TRISB6 TRISB5 TRISB4 TRISB3 TRISB2 TRISB1 TRISB0 1111 1111 1111 1111
87h TRISC TRISC7 TRISC6 TRISC5 TRISC4 TRISC3 TRISC2 TRISC1 TRISC0 1111 1111 1111 1111
88h TRISD
(3)
TRISD7 TRISD6 TRISD5 TRISD4 TRISD3 TRISD2 TRISD1 TRISD0 1111 1111 1111 1111
89h TRISE
— — — — TRISE3 TRISE2
(3)
TRISE1
(3)
TRISE0
(3)
---- 1111 ---- 1111
8Ah PCLATH
— — — Write Buffer for the upper 5 bits of the Program Counter ---0 0000 ---0 0000
8Bh INTCON GIE PEIE T0IE INTE RBIE T0IF INTF RBIF
(1)
0000 000x 0000 000u
8Ch PIE1
— ADIE RCIE TXIE SSPIE CCP1IE TMR2IE TMR1IE -000 0000 0000 0000
8Dh PIE2 OSFIE C2IE C1IE EEIE BCLIE ULPWUIE
— CCP2IE 0000 00-0 0000 0000
8Eh PCON
— — ULPWUE SBOREN — —PORBOR --01 --qq --0u --uu
(4,6)
8Fh OSCCON — IRCF2 IRCF1 IRCF0 OSTS HTS LTS SCS -110 q000 -110 q000
90h OSCTUNE
— — — TUN4 TUN3 TUN2 TUN1 TUN0 ---0 0000 ---u uuuu
91h SSPCON2 GCEN ACKSTAT ACKDT ACKEN RCEN PEN RSEN SEN 0000 0000 0000 0000
92h
PR2
Timer2 Period Register 1111 1111 1111 1111
93h
SSPADD
(2)
Synchronous Serial Port (I
2
C mode) Address Register 0000 0000 0000 0000
93h
SSPMSK
(2)
MSK7 MSK6 MSK5 MSK4 MSK3 MSK2 MSK1 MSK0 1111 1111 1111 1111
94h
SSPSTAT
SMP CKE D/A
PSR/WUA BF 0000 0000 0000 0000
95h
WPUB
WPUB7 WPUB6 WPUB5 WPUB4 WPUB3 WPUB2 WPUB1 WPUB0 1111 1111 1111 1111
96h IOCB IOCB7 IOCB6 IOCB5 IOCB4 IOCB3 IOCB2 IOCB1 IOCB0 0000 0000 0000 0000
97h VRCON VREN VROE VRR VRSS VR3 VR2 VR1 VR0 0000 0000 0000 0000
98h TXSTA CSRC TX9 TXEN SYNC SENDB BRGH TRMT TX9D 0000 0010 0000 -010
99h SPBRG BRG7 BRG6 BRG5 BRG4 BRG3 BRG2 BRG1 BRG0 0000 0000 0000 0000
9Ah SPBRGH BRG15 BRG14 BRG13 BRG12 BRG11 BRG10 BRG9 BRG8 0000 0000 0000 0000
9Bh PWM1CON PRSEN PDC6 PDC5 PDC4 PDC3 PDC2 PDC1 PDC0 0000 0000 0000 0000
9Ch ECCPAS ECCPASE ECCPAS2 ECCPAS1 ECCPAS0 PSSAC1 PSSAC0 PSSBD1 PSSBD0 0000 0000 0000 0000
9Dh PSTRCON
— — — STRSYNC STRD STRC STRB STRA ---0 0001 ---0 0001
9Eh ADRESL A/D Result Register Low Byte xxxx xxxx uuuu uuuu
9Fh ADCON1 ADFM
—VCFG1VCFG0— — — — 0-00 ---- 0-00 ----
Legend: – = Unimplemented locations read as ‘0’, u = unchanged, x = unknown, q = value depends on condition, shaded = unimplemented
Note 1: MCLR
and WDT Reset do not affect the previous value data latch. The RBIF bit will be cleared upon Reset but will set again if the mismatch
exists.
2: Accessible only when SSPCON register bits SSPM<3:0> = 1001.
3: PIC16F884/PIC16F887 only.
4: If V
DD goes too low, Power-on Reset will be activated and registers will be affected differently.
5: See Table 14-5 for Reset value for specific condition.
6: If Reset was due to brown-out, then bit 0 = 0. All other Resets will cause bit 0 = u.