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PIC16F87XATI/SP Datasheet - Page 18

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PIC16F87XA
FIGURE 2-4:
PIC16F873A/874A REGISTER FILE MAP
File
Address
(*)
Indirect addr.
Indirect addr.
00h
01h
OPTION_REG
TMR0
PCL
02h
STATUS
03h
04h
FSR
PORTA
05h
PORTB
06h
07h
PORTC
(1)
08h
PORTD
(1)
09h
PORTE
0Ah
PCLATH
0Bh
INTCON
PIR1
0Ch
0Dh
PIR2
0Eh
TMR1L
TMR1H
0Fh
T1CON
10h
11h
TMR2
12h
T2CON
SSPBUF
13h
14h
SSPCON
15h
CCPR1L
CCPR1H
16h
CCP1CON
17h
18h
RCSTA
19h
TXREG
1Ah
RCREG
1Bh
CCPR2L
1Ch
CCPR2H
1Dh
CCP2CON
1Eh
ADRESH
1Fh
ADCON0
20h
General
Purpose
Register
96 Bytes
7Fh
Bank 0
Unimplemented data memory locations, read as ‘0’.
*
Not a physical register.
Note 1:
These registers are not implemented on the PIC16F873A.
2:
These registers are reserved; maintain these registers clear.
DS39582C-page 18
File
Address
(*)
(*)
Indirect addr.
80h
TMR0
81h
PCL
PCL
82h
STATUS
STATUS
83h
FSR
FSR
84h
TRISA
85h
PORTB
TRISB
86h
TRISC
87h
(1)
TRISD
88h
(1)
TRISE
89h
PCLATH
PCLATH
8Ah
INTCON
INTCON
8Bh
PIE1
EEDATA
8Ch
EEADR
PIE2
8Dh
PCON
8Eh
EEDATH
EEADRH
8Fh
90h
SSPCON2
91h
PR2
92h
SSPADD
93h
SSPSTAT
94h
95h
96h
97h
TXSTA
98h
SPBRG
99h
9Ah
9Bh
CMCON
9Ch
CVRCON
9Dh
ADRESL
9Eh
ADCON1
9Fh
A0h
General
Purpose
accesses
Register
20h-7Fh
96 Bytes
FFh
Bank 1
Bank 2
File
File
Address
Address
(*)
Indirect addr.
100h
180h
101h
OPTION_REG
181h
102h
PCL
182h
103h
STATUS
183h
104h
FSR
184h
105h
185h
106h
TRISB
186h
107h
187h
108h
188h
109h
189h
10Ah
PCLATH
18Ah
10Bh
INTCON
18Bh
10Ch
EECON1
18Ch
10Dh
EECON2
18Dh
(2)
10Eh
Reserved
18Eh
10Fh
(2)
18Fh
Reserved
110h
190h
1A0h
120h
accesses
A0h - FFh
1EFh
16Fh
1F0h
170h
17Fh
1FFh
Bank 3
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