PIC16F688 Datasheet, PDF (13/174 Pages) Microchip Technology – 14-Pin Flash-Based, 8-Bit CMOS Microcontrollers with nanoWatt Technology

PIC16F688
TABLE 2-3: PIC16F688 SPECIAL REGISTERS SUMMARY BANK 2
Addr
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR/BOD
Reset
Value on
all other
Resets⁽¹⁾
Bank 2
100h
INDF
Addressing this location uses contents of FSR to address data memory (not a physical
register)
xxxx xxxx xxxx xxxx
101h
TMR0
Timer0 Module’s register
xxxx xxxx uuuu uuuu
102h
PCL
Program Counter's (PC) Least Significant Byte
0000 0000 0000 0000
103h
STATUS
IRP
RP1
RP0
TO
PD
Z
DC
C
0001 1xxx 000q quuu
104h
FSR
Indirect Data Memory Address Pointer
xxxx xxxx uuuu uuuu
105h
PORTA
—
—
RA5
RA4
RA3
RA2
RA1
RA0 --xx xx00 --uu uuuu
106h
—
Unimplemented
—
—
107h
PORTC
—
—
RC5
RC4
RC3
RC2
RC1
RC0 --xx xx00 --uu uuuu
108h
—
Unimplemented
—
—
109h
—
Unimplemented
—
—
10Ah
10Bh
PCLATH
INTCON
—
—
— Write Buffer for upper 5 bits of Program Counter
---0 0000 ---0 0000
GIE
PEIE
T0IE
INTE
RAIE
T0IF
INTF
RAIF⁽²⁾ 0000 0000 0000 0000
10Ch
—
Unimplemented
—
—
10Dh
—
Unimplemented
—
—
10Eh
—
Unimplemented
—
—
10Fh
—
Unimplemented
—
—
110h
—
Unimplemented
—
—
111h
—
Unimplemented
—
—
112h
—
Unimplemented
—
—
113h
—
Unimplemented
—
—
114h
—
Unimplemented
—
—
115h
—
Unimplemented
—
—
116h
—
Unimplemented
—
—
117h
—
Unimplemented
—
—
118h
—
Unimplemented
—
—
119h
—
Unimplemented
—
—
11Ah
—
Unimplemented
—
—
11Bh
—
Unimplemented
—
—
11Ch
—
Unimplemented
—
—
11Dh
—
Unimplemented
—
—
11Eh
—
Unimplemented
—
—
11Fh
—
Unimplemented
—
—
Legend:
Note 1:
2:
- = Unimplemented locations read as ‘0’, u = unchanged, x = unknown, q = value depends on condition, shaded = unimplemented
Other (non Power-up) Resets include MCLR Reset and Watchdog Timer Reset during normal operation.
MCLR and WDT Reset does not affect the previous value data latch. The RAIF bit will be cleared upon reset but will set again if the
mismatched exists.
 2004 Microchip Technology Inc.
Preliminary
DS41203B-page 11