PIC12F508T-I Datasheet, PDF (21/110 Pages) Microchip Technology – 8/14-Pin, 8-Bit Flash Microcontrollers

PIC12F508/509/16F505
TABLE 4-2: SPECIAL FUNCTION REGISTER (SFR) SUMMARY (PIC16F505)
Address Name
Bit 7 Bit 6 Bit 5 Bit 4 Bit 3
Bit 2
Bit 1 Bit 0
Value on
Power-On
Reset⁽²⁾
Page #
00h
INDF
01h
02h⁽¹⁾
TMR0
PCL
Uses Contents of FSR to Address Data Memory (not a physical
register)
8-bit Real-Time Clock/Counter
Low-order 8 bits of PC
xxxx xxxx 28
xxxx xxxx 35
1111 1111 27
03h
STATUS RBWUF — PA0 TO
PD
Z
DC C 0-01 1xxx 22
04h
FSR
Indirect Data Memory Address Pointer
100x xxxx 28
05h
OSCCAL CAL6 CAL5 CAL4 CAL3 CAL2 CAL1 CAL0 — 1111 111- 26
06h
PORTB
—
— RB5 RB4 RB3 RB2 RB1 RB0 --xx xxxx
31
07h
PORTC
—
— RC5 RC4 RC3 RC2 RC1 RC0 --xx xxxx 31
N/A
TRISB
—
— I/O Control Register
--11 1111 31
N/A
TRISC
—
— I/O Control Register
--11 1111 31
N/A
OPTION RBWU RBPU TOCS TOSE PSA PS2 PS1 PS0 1111 1111 25
Legend: – = unimplemented, read as ‘0’, x = unknown, u = unchanged, q = value depends on condition.
Note 1: If Reset was due to wake-up on pin change, then bit 7 = 1. All other Resets will cause bit 7 = 0.
2: Other (non Power-up) Resets include external reset through MCLR, Watchdog Timer and wake-up on pin
change Reset.
© 2009 Microchip Technology Inc.
DS41236E-page 21