PIC16C712/716
TABLE 2-1 SPECIAL FUNCTION REGISTER SUMMARY (Cont.’d)
Addr Name
Bit 7
Bit 6
Bit 5
Bit 4
Bit 3
Bit 2
Bit 1
Bit 0
Value on: Value on all
POR, other resets
BOR
(4)
Bank 1
80h
INDF(1)
Addressing this location uses contents of FSR to address data memory (not a physical register)
0000 0000 0000 0000
81h
OPTION_
REG
RBPU INTEDG T0CS
T0SE
PSA
PS2
PS1
PS0 1111 1111 1111 1111
82h
PCL(1)
Program Counter’s (PC) Least Significant Byte
0000 0000 0000 0000
83h
STATUS(1)
IRP(4)
RP1(4)
RP0
TO
PD
Z
DC
C
rr01 1xxx rr0q quuu
84h
FSR(1)
Indirect data memory address pointer
xxxx xxxx uuuu uuuu
85h
TRISA
—
—
—(7) PORTA Data Direction Register
--x1 1111 --x1 1111
86h
TRISB
PORTB Data Direction Register
87h
TRISCCP
—(7)
—(7)
—(7)
—(7)
—(7)
TCCP
—(7)
TT1CK
1111 1111 1111 1111
xxxx x1x1 xxxx x1x1
88h-89h
8Ah
8Bh
—
Unimplemented
PCLATH(1,2)
—
—
INTCON(1)
GIE
PEIE
—
T0IE
Write Buffer for the upper 5 bits of the Program Counter
INTE
RBIE
T0IF
INTF
RBIF
—
—
---0 0000 ---0 0000
0000 000x 0000 000u
8Ch
PIE1
—
ADIE
—
—
—
CCP1IE TMR2IE TMR1IE -0-- -000 -0-- -000
8Dh
—
Unimplemented
—
—
8Eh
PCON
—
—
—
—
—
—
POR
BOR ---- --qq ---- --uu
8Fh-91h
—
Unimplemented
—
—
92h
PR2
Timer2 Period Register
1111 1111 1111 1111
93h-9Eh
—
Unimplemented
—
—
9Fh
ADCON1
—
—
—
—
—
PCFG2 PCFG1 PCFG0 ---- -000 ---- -000
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 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 the Watchdog Timer Reset.
4: The IRP and RP1 bits are reserved. Always maintain these bits clear.
5: On any device reset, these pins are configured as inputs.
6: This is the value that will be in the port output latch.
7: Reserved bits; Do Not Use.
DS41106A-page 12
Preliminary
© 1999 Microchip Technology Inc.