PIC16F87XA
FIGURE 2-3:
PIC16F876A/877A REGISTER FILE MAP
File
Address
Indirect addr.
(*)
TMR0
PCL
STATUS
FSR
PORTA
PORTB
PORTC
PORTD
(1)
PORTE
(1)
PCLATH
INTCON
PIR1
PIR2
TMR1L
TMR1H
T1CON
TMR2
T2CON
SSPBUF
SSPCON
CCPR1L
CCPR1H
CCP1CON
RCSTA
TXREG
RCREG
CCPR2L
CCPR2H
CCP2CON
ADRESH
ADCON0
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
1Fh
20h
Indirect addr.
(*)
OPTION_REG
PCL
STATUS
FSR
TRISA
TRISB
TRISC
TRISD
(1)
TRISE
(1)
PCLATH
INTCON
PIE1
PIE2
PCON
File
Address
80h
81h
82h
83h
84h
85h
86h
87h
88h
89h
8Ah
8Bh
8Ch
8Dh
8Eh
8Fh
90h
91h
92h
93h
94h
95h
96h
97h
98h
99h
9Ah
9Bh
9Ch
9Dh
9Eh
9Fh
A0h
General
Purpose
Register
80 Bytes
accesses
70h-7Fh
7Fh
Bank 0
Bank 1
General
Purpose
Register
80 Bytes
accesses
70h-7Fh
Bank 2
Indirect addr.
(*)
TMR0
PCL
STATUS
FSR
PORTB
File
Address
100h
101h
102h
103h
104h
105h
106h
107h
108h
109h
10Ah
10Bh
10Ch
10Dh
10Eh
10Fh
110h
111h
112h
113h
114h
115h
116h
117h
118h
119h
11Ah
11Bh
11Ch
11Dh
11Eh
11Fh
120h
Indirect addr.
(*)
OPTION_REG
PCL
STATUS
FSR
TRISB
File
Address
180h
181h
182h
183h
184h
185h
186h
187h
188h
189h
18Ah
18Bh
18Ch
18Dh
18Eh
18Fh
190h
191h
192h
193h
194h
195h
196h
197h
198h
199h
19Ah
19Bh
19Ch
19Dh
19Eh
19Fh
1A0h
PCLATH
INTCON
EEDATA
EEADR
EEDATH
EEADRH
PCLATH
INTCON
EECON1
EECON2
Reserved
(2)
Reserved
(2)
SSPCON2
PR2
SSPADD
SSPSTAT
TXSTA
SPBRG
General
Purpose
Register
16 Bytes
General
Purpose
Register
16 Bytes
CMCON
CVRCON
ADRESL
ADCON1
General
Purpose
Register
96 Bytes
EFh
F0h
FFh
16Fh
170h
17Fh
General
Purpose
Register
80 Bytes
accesses
70h - 7Fh
Bank 3
1EFh
1F0h
1FFh
Unimplemented data memory locations, read as ’0’.
* Not a physical register.
Note 1:
These registers are not implemented on the PIC16F876A.
2:
These registers are reserved, maintain these registers clear.
2001 Microchip Technology Inc.
Advance Information
DS39582A-page 15
MICROCHIP [ MICROCHIP TECHNOLOGY ]
