PIC18F23K20 Datasheet, PDF (79/420 Pages) Microchip Technology – 28/40/44-Pin Flash Microcontrollers with 10-Bit A/D and nanoWatt Technology

PIC18F2XK20/4XK20
TABLE 5-2: REGISTER FILE SUMMARY (PIC18F2XK20/4XK20)
File Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on Details
POR, BOR on page:
TOSU
—
—
—
Top-of-Stack Upper Byte (TOS<20:16>)
---0 0000 57, 64
TOSH
Top-of-Stack, High Byte (TOS<15:8>)
0000 0000 57, 64
TOSL
Top-of-Stack, Low Byte (TOS<7:0>)
0000 0000 57, 64
STKPTR
STKFUL STKUNF
—
SP4
SP3
SP2
SP1
SP0 00-0 0000 57, 65
PCLATU
—
—
—
Holding Register for PC<20:16>
---0 0000 57, 64
PCLATH
Holding Register for PC<15:8>
0000 0000 57, 64
PCL
PC, Low Byte (PC<7:0>)
0000 0000 57, 64
TBLPTRU
—
—
bit 21 Program Memory Table Pointer Upper Byte (TBLPTR<20:16>)
--00 0000 57, 90
TBLPTRH Program Memory Table Pointer, High Byte (TBLPTR<15:8>)
0000 0000 57, 90
TBLPTRL Program Memory Table Pointer, Low Byte (TBLPTR<7:0>)
0000 0000 57, 90
TABLAT
Program Memory Table Latch
0000 0000 57, 90
PRODH
Product Register, High Byte
xxxx xxxx 57, 101
PRODL
Product Register, Low Byte
xxxx xxxx 57, 101
INTCON
GIE/GIEH PEIE/GIEL TMR0IE
INT0IE
RBIE
TMR0IF
INT0IF
RBIF 0000 000x 57, 105
INTCON2
RBPU
INTEDG0 INTEDG1 INTEDG2
—
TMR0IP
—
RBIP 1111 -1-1 57, 106
INTCON3
INT2IP
INT1IP
—
INT2IE
INT1IE
—
INT2IF
INT1IF 11-0 0-00 57, 107
INDF0
Uses contents of FSR0 to address data memory – value of FSR0 not changed (not a physical register)
N/A
57, 82
POSTINC0 Uses contents of FSR0 to address data memory – value of FSR0 post-incremented (not a physical register)
N/A
57, 82
POSTDEC0 Uses contents of FSR0 to address data memory – value of FSR0 post-decremented (not a physical register)
N/A
57, 82
PREINC0 Uses contents of FSR0 to address data memory – value of FSR0 pre-incremented (not a physical register)
N/A
57, 82
PLUSW0
Uses contents of FSR0 to address data memory – value of FSR0 pre-incremented (not a physical register) –
value of FSR0 offset by W
N/A
57, 82
FSR0H
—
—
—
—
Indirect Data Memory Address Pointer 0, High Byte ---- 0000 57, 82
FSR0L
Indirect Data Memory Address Pointer 0, Low Byte
xxxx xxxx 57, 82
WREG
Working Register
xxxx xxxx 57
INDF1
Uses contents of FSR1 to address data memory – value of FSR1 not changed (not a physical register)
N/A
57, 82
POSTINC1 Uses contents of FSR1 to address data memory – value of FSR1 post-incremented (not a physical register)
N/A
57, 82
POSTDEC1 Uses contents of FSR1 to address data memory – value of FSR1 post-decremented (not a physical register)
N/A
57, 82
PREINC1 Uses contents of FSR1 to address data memory – value of FSR1 pre-incremented (not a physical register)
N/A
57, 82
PLUSW1
Uses contents of FSR1 to address data memory – value of FSR1 pre-incremented (not a physical register) –
value of FSR1 offset by W
N/A
57, 82
FSR1H
—
—
—
—
Indirect Data Memory Address Pointer 1, High Byte ---- 0000 58, 82
FSR1L
Indirect Data Memory Address Pointer 1, Low Byte
xxxx xxxx 58, 82
BSR
—
—
—
—
Bank Select Register
---- 0000 58, 69
INDF2
Uses contents of FSR2 to address data memory – value of FSR2 not changed (not a physical register)
N/A
58, 82
POSTINC2 Uses contents of FSR2 to address data memory – value of FSR2 post-incremented (not a physical register)
N/A
58, 82
POSTDEC2 Uses contents of FSR2 to address data memory – value of FSR2 post-decremented (not a physical register)
N/A
58, 82
PREINC2 Uses contents of FSR2 to address data memory – value of FSR2 pre-incremented (not a physical register)
N/A
58, 82
PLUSW2
Uses contents of FSR2 to address data memory – value of FSR2 pre-incremented (not a physical register) –
value of FSR2 offset by W
N/A
58, 82
FSR2H
—
—
—
—
Indirect Data Memory Address Pointer 2, High Byte ---- 0000 58, 82
FSR2L
Indirect Data Memory Address Pointer 2, Low Byte
xxxx xxxx 58, 82
STATUS
—
—
—
N
OV
Z
DC
C
---x xxxx 58, 80
Legend:
Note 1:
2:
3:
4:
5:
6:
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 4.4 “Brown-out Reset (BOR)”.
These registers and/or bits are not implemented on 28-pin devices and are read as ‘0’. Reset values are shown for 40/44-pin devices;
individual unimplemented bits should be interpreted as ‘-’.
The PLLEN bit is only available in specific oscillator configuration; otherwise it is disabled and reads as ‘0’. See Section 2.6.2 “PLL in
HFINTOSC Modes”.
The RE3 bit is only available when Master Clear Reset is disabled (MCLRE Configuration bit = 0). Otherwise, RE3 reads as ‘0’. This bit is
read-only.
RA6/RA7 and their associated latch and direction bits are individually configured as port pins based on various primary oscillator modes.
When disabled, these bits read as ‘0’.
All bits of the ANSELH register initialize to ‘0’ if the PBADEN bit of CONFIG3H is ‘0’.
© 2007 Microchip Technology Inc.
Advance Information
DS41303B-page 77