PIC16C7X
DS30390E-page 24
1997 Microchip Technology Inc.
Bank 1
80h(1)
INDF
Addressing this location uses contents of FSR to address data memory (not a physical register)
0000 0000
81h
OPTION
RBPU
INTEDG
T0CS
T0SE
PSA
PS2
PS1
PS0
1111 1111
82h(1)
PCL
Program Counter's (PC) Least Signicant Byte
0000 0000
83h(1)
STATUS
IRP(4)
RP1(4)
RP0
TO
PD
ZDC
C
0001 1xxx
000q quuu
84h(1)
FSR
Indirect data memory address pointer
xxxx xxxx
uuuu uuuu
85h
TRISA
—
PORTA Data Direction Register
--11 1111
86h
TRISB
PORTB Data Direction Register
1111 1111
87h
TRISC
PORTC Data Direction Register
1111 1111
88h
—
Unimplemented
—
89h
—
Unimplemented
—
8Ah(1,2)
PCLATH
—
Write Buffer for the upper 5 bits of the PC
---0 0000
8Bh(1)
INTCON
GIE
PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
0000 000x
0000 000u
8Ch
PIE1
—
ADIE
—
SSPIE
CCP1IE
TMR2IE
TMR1IE
-0-- 0000
8Dh
—
Unimplemented
—
8Eh
PCON
—
POR
BOR
---- --qq
---- --uu
8Fh
—
Unimplemented
—
90h
—
Unimplemented
—
91h
—
Unimplemented
—
92h
PR2
Timer2 Period Register
1111 1111
93h
SSPADD
Synchronous Serial Port (I2C mode) Address Register
0000 0000
94h
SSPSTAT
—
D/A
P
S
R/W
UA
BF
--00 0000
95h
—
Unimplemented
—
96h
—
Unimplemented
—
97h
—
Unimplemented
—
98h
—
Unimplemented
—
99h
—
Unimplemented
—
9Ah
—
Unimplemented
—
9Bh
—
Unimplemented
—
9Ch
—
Unimplemented
—
9Dh
—
Unimplemented
—
9Eh
—
Unimplemented
—
9Fh
ADCON1
—
PCFG2
PCFG1
PCFG0
---- -000
TABLE 4-1:
PIC16C72 SPECIAL FUNCTION REGISTER SUMMARY (Cont.’d)
Address Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on:
POR,
BOR
Value on all
other resets
(3)
Legend: x = unknown, u = unchanged, q = value depends on condition, - = unimplemented read as '0'.
Shaded locations are unimplemented, read as ‘0’.
Note 1:
These registers can be addressed from either bank.
2:
The upper byte of the program counter is not directly accessible. PCLATH is a holding register for the PC<12:8> whose
contents are transferred to the upper byte of the program counter.
3:
Other (non power-up) resets include external reset through MCLR and Watchdog Timer Reset.
4:
The IRP and RP1 bits are reserved on the PIC16C72, always maintain these bits clear.
