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PIC18F-LF1XK50 Datasheet, PDF (41/420 Pages) Microchip Technology – 20-Pin USB Flash Microcontrollers
PIC18F1XK50/PIC18LF1XK50
TABLE 3-2: REGISTER FILE SUMMARY (PIC18F/LF1XK50)
File Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on
POR, BOR
Details
on
page:
TOSU
—
—
—
Top-of-Stack Upper Byte (TOS<20:16>)
---0 0000 285, 30
TOSH
Top-of-Stack, High Byte (TOS<15:8>)
0000 0000 285, 30
TOSL
Top-of-Stack, Low Byte (TOS<7:0>)
0000 0000 285, 30
STKPTR
STKFUL STKUNF
—
SP4
SP3
SP2
SP1
SP0 00-0 0000 285, 31
PCLATU
—
—
—
Holding Register for PC<20:16>
---0 0000 285, 30
PCLATH Holding Register for PC<15:8>
0000 0000 285, 30
PCL
PC, Low Byte (PC<7:0>)
0000 0000 285, 30
TBLPTRU
—
—
—
Program Memory Table Pointer Upper Byte (TBLPTR<20:16>)
---0 0000 285, 54
TBLPTRH Program Memory Table Pointer, High Byte (TBLPTR<15:8>)
0000 0000 285, 54
TBLPTRL Program Memory Table Pointer, Low Byte (TBLPTR<7:0>)
0000 0000 285, 54
TABLAT Program Memory Table Latch
0000 0000 285, 54
PRODH Product Register, High Byte
xxxx xxxx 285, 65
PRODL Product Register, Low Byte
xxxx xxxx 285, 65
INTCON
GIE/GIEH PEIE/GIEL TMR0IE
INT0IE
RABIE
TMR0IF
INT0IF
RABIF 0000 000x 285, 70
INTCON2
RABPU INTEDG0 INTEDG1 INTEDG2
—
TMR0IP
—
RABIP 1111 -1-1 285, 71
INTCON3
INT2IP
INT1IP
—
INT2IE
INT1IE
—
INT2IF
INT1IF 11-0 0-00 285, 72
INDF0
Uses contents of FSR0 to address data memory – value of FSR0 not changed (not a physical register)
N/A
285, 47
POSTINC0 Uses contents of FSR0 to address data memory – value of FSR0 post-incremented (not a physical register)
N/A
285, 47
POSTDEC0 Uses contents of FSR0 to address data memory – value of FSR0 post-decremented (not a physical register)
N/A
285, 47
PREINC0 Uses contents of FSR0 to address data memory – value of FSR0 pre-incremented (not a physical register)
N/A
285, 47
PLUSW0 Uses contents of FSR0 to address data memory – value of FSR0 pre-incremented (not a physical register) – value
N/A
285, 47
of FSR0 offset by W
FSR0H
—
—
—
—
Indirect Data Memory Address Pointer 0, High Byte
---- 0000 285, 47
FSR0L
Indirect Data Memory Address Pointer 0, Low Byte
xxxx xxxx 285, 47
WREG
Working Register
xxxx xxxx 285
INDF1
Uses contents of FSR1 to address data memory – value of FSR1 not changed (not a physical register)
N/A
285, 47
POSTINC1 Uses contents of FSR1 to address data memory – value of FSR1 post-incremented (not a physical register)
N/A
285, 47
POSTDEC1 Uses contents of FSR1 to address data memory – value of FSR1 post-decremented (not a physical register)
N/A
285, 47
PREINC1 Uses contents of FSR1 to address data memory – value of FSR1 pre-incremented (not a physical register)
N/A
285, 47
PLUSW1 Uses contents of FSR1 to address data memory – value of FSR1 pre-incremented (not a physical register) – value
N/A
285, 47
of FSR1 offset by W
FSR1H
—
—
—
—
Indirect Data Memory Address Pointer 1, High Byte
---- 0000 286, 47
FSR1L
Indirect Data Memory Address Pointer 1, Low Byte
xxxx xxxx 286, 47
BSR
—
—
—
—
Bank Select Register
---- 0000 286, 35
INDF2
Uses contents of FSR2 to address data memory – value of FSR2 not changed (not a physical register)
N/A
286, 47
POSTINC2 Uses contents of FSR2 to address data memory – value of FSR2 post-incremented (not a physical register)
N/A
286, 47
POSTDEC2 Uses contents of FSR2 to address data memory – value of FSR2 post-decremented (not a physical register)
N/A
286, 47
PREINC2 Uses contents of FSR2 to address data memory – value of FSR2 pre-incremented (not a physical register)
N/A
286, 47
PLUSW2 Uses contents of FSR2 to address data memory – value of FSR2 pre-incremented (not a physical register) – value
N/A
286, 47
of FSR2 offset by W
FSR2H
—
—
—
—
Indirect Data Memory Address Pointer 2, High Byte
---- 0000 286, 47
FSR2L
Indirect Data Memory Address Pointer 2, Low Byte
xxxx xxxx 286, 47
STATUS
—
—
—
N
OV
Z
DC
C
---x xxxx 286, 45
Legend:
Note 1:
2:
3:
x = unknown, u = unchanged, — = unimplemented, q = value depends on condition
The SBOREN bit is only available when the BOREN<1:0> Configuration bits = 01; otherwise it is disabled and reads as ‘0’. See
Section 23.4 “Brown-out Reset (BOR)”.
The RA3 bit is only available when Master Clear Reset is disabled (MCLRE Configuration bit = 0). Otherwise, RA3 reads as ‘0’. This bit is
read-only.
Bits RA0 and RA1 are available only when USB is disabled.
 2010 Microchip Technology Inc.
Preliminary
DS41350E-page 41