PIC16F1938 Datasheet, PDF (43/452 Pages) Microchip Technology – 28/40/44-Pin Flash-Based, 8-Bit CMOS Microcontrollers

PIC16(L)F1938/9
TABLE 3-10: 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
Value on all
other
Resets
Bank 7
380h⁽²⁾ INDF0
Addressing this location uses contents of FSR0H/FSR0L to Address Data Memory
(not a physical register)
xxxx xxxx xxxx xxxx
381h⁽²⁾ INDF1
Addressing this location uses contents of FSR1H/FSR1L to Address Data Memory
(not a physical register)
xxxx xxxx xxxx xxxx
382h⁽²⁾ PCL
Program Counter (PC) Least Significant Byte
0000 0000 0000 0000
383h⁽²⁾ STATUS
—
—
—
TO
PD
Z
DC
C
---1 1000 ---q quuu
384h⁽²⁾ FSR0L
Indirect Data Memory Address 0 Low Pointer
0000 0000 uuuu uuuu
385h⁽²⁾ FSR0H
Indirect Data Memory Address 0 High Pointer
0000 0000 0000 0000
386h⁽²⁾ FSR1L
Indirect Data Memory Address 1 Low Pointer
0000 0000 uuuu uuuu
387h⁽²⁾ FSR1H
Indirect Data Memory Address 1 High Pointer
0000 0000 0000 0000
388h⁽²⁾ BSR
—
—
—
BSR<4:0>
---0 0000 ---0 0000
389h⁽²⁾ WREG
Working Register
0000 0000 uuuu uuuu
38Ah^{(1, 2)} PCLATH
—
Write Buffer for the upper 7 bits of the Program Counter
-000 0000 -000 0000
38Bh⁽²⁾ INTCON
GIE
PEIE
TMR0IE
INTE
IOCIE
TMR0IF
INTF
IOCIF 0000 0000 0000 0000
38Ch
—
Unimplemented
—
—
38Dh
—
Unimplemented
—
—
38Eh
—
Unimplemented
—
—
38Fh
—
Unimplemented
—
—
390h
—
Unimplemented
—
—
391h
—
Unimplemented
—
—
392h
—
Unimplemented
—
—
393h
—
Unimplemented
—
—
394h
IOCBP
IOCBP7 IOCBP6
IOCBP5
IOCBP4
IOCBP3 IOCBP2 IOCBP1 IOCBP0 0000 0000 0000 0000
395h
IOCBN
IOCBN7 IOCBN6
IOCBN5
IOCBN4
IOCBN3 IOCBN2 IOCBN1 IOCBN0 0000 0000 0000 0000
396h
IOCBF
IOCBF7 IOCBF6
IOCBF5
IOCBF4
IOCBF3 IOCBF2 IOCBF1 IOCBF0 0000 0000 0000 0000
397h
—
Unimplemented
—
—
398h
—
Unimplemented
—
—
399h
—
Unimplemented
—
—
39Ah
—
Unimplemented
—
—
39Bh
—
Unimplemented
—
—
39Ch
—
Unimplemented
—
—
39Dh
—
Unimplemented
—
—
39Eh
—
Unimplemented
—
—
39Fh
—
Unimplemented
—
—
Legend:
Note 1:
2:
3:
4:
x = unknown, u = unchanged, q = value depends on condition, - = unimplemented, read as ‘0’, r = reserved.
Shaded locations are unimplemented, read as ‘0’.
The upper byte of the program counter is not directly accessible. PCLATH is a holding register for the PC<14:8>, whose contents are transferred
to the upper byte of the program counter.
These registers can be addressed from any bank.
These registers/bits are not implemented on PIC16(L)F1938 devices, read as ‘0’.
Unimplemented, read as ‘1’.
 2011 Microchip Technology Inc.
Preliminary
DS41574A-page 43