PIC14000
4.2.2
SPECIAL FUNCTION REGISTERS
The special registers are classified into two sets.
Special registers associated with the “core” functions
are described in this section. Those registers related to
the operation of the peripheral features are described
in the section specific to that peripheral.
The special function registers are registers used by the
CPU and peripheral functions for controlling the
desired operation of the device (Table 4-3). These reg-
isters are static RAM.
TABLE 4-3:
SPECIAL FUNCTION REGISTERS FOR THE PIC14000
Address
Bank0
Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
INDF
(Indirect
Address)
Addressing this location uses contents of the FSR to address data memory (not a physical
register).
00h*
01h
02h*
03h*
04h*
05h
06h
07h
08h
09h
0Ah*
0Bh*
0Ch
0Dh
0Eh
0Fh
10h
11h
12h
13h
14h
15h
16h
17h
18h
19h
1Ah
1Bh
1Ch
1Dh
1Eh
TMR0
Timer0 data
PCL
Program Counter’s (PC’s) least significant byte
STATUS
FSR
IRP
RP1
RP0
TO
PD
Z
DC
C
Indirect data memory address pointer
PORTA data latch.
PORTA
Reserved
PORTC
PORTD
Reserved
PCLATH
INTCON
PIR1
Reserved for emulation.
PORTC data latch
PORTD data latch
Buffered register for the upper 5 bits of the Program Counter (PC)
GIE
PEIE
—
T0IE
—
r
r
T0IF
r
r
2
CMIF
PBIF
I CIF
RCIF
ADCIF
OVFIF
Reserved
ADTMRL
ADTMRH
Reserved
Reserved
Reserved
A/D capture timer data least significant byte
A/D capture timer data most significant byte
2
2
I CBUF
I C Serial Port Receive Buffer/Transmit Register
2
2
2
2
2
2
2
I CCON
WCOL
I COV
I CEN
CKP
I CM3
I CM2
I CM1
I CM0
ADCAPL
ADCAPH
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
Reserved
ADCON0
A/D capture latch least significant byte
A/D capture latch most significant byte
1Fh
ADCS3
ADCS2
ADCS1
ADCS0
—
AMUXOE
ADRST ADZERO
Legend
— = unimplemented bits, read as ‘0’ but cannot be overwritten
= reserved bits, default is POR value and should not be overwritten with any value
r
Reserved indicates reserved register and should not be overwritten with any value
* indicates registers that can be addressed from either bank
1996 Microchip Technology Inc.
Preliminary
DS40122B-page 15
MICROCHIP [ MICROCHIP ]
