PIC16C65A Microchip Technology, PIC16C65A Datasheet - Page 33

• Manufacturer Part Number: PIC16C65A
• Description: 8-Bit CMOS Microcontrollers
• Manufacturer: Microchip Technology

TABLE 4-6:
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
Legend: x = unknown, u = unchanged, q = value depends on condition, - = unimplemented location read as '0'.
Note 1: These registers can be addressed from any bank.
Address Name
Bank 1
1997 Microchip Technology Inc.
(1)
(1)
(1)
(1)
(5)
(5)
(1,2)
(1)
2: The upper byte of the Program Counter (PC) is not directly accessible. PCLATH is a holding register for the PC whose
3: Other (non power-up) resets include external reset through MCLR and the Watchdog Timer reset.
4: PIE1<6> and PIR1<6> are reserved on the PIC16C66/67, always maintain these bits clear.
5: PORTD, PORTE, TRISD, and TRISE are not implemented on the PIC16C66, read as '0'.
6: PSPIF (PIR1<7>) and PSPIE (PIE1<7>) are reserved on the PIC16C66, maintain these bits clear.
INDF
OPTION
PCL
STATUS
FSR
TRISA
TRISB
TRISC
TRISD
TRISE
PCLATH
INTCON
PIE1
PIE2
PCON
PR2
SSPADD
SSPSTAT
TXSTA
SPBRG
Shaded locations are unimplemented, read as ‘0’.
contents are transferred to the upper byte of the program counter. (PC<12:8>)
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SPECIAL FUNCTION REGISTERS FOR THE PIC16C66/67 (Cont.’d)
Addressing this location uses contents of FSR to address data memory (not a physical register)
Program Counter's (PC) Least Significant Byte
Indirect data memory address pointer
PORTB Data Direction Register
PORTC Data Direction Register
PORTD Data Direction Register
Unimplemented
Unimplemented
Unimplemented
Timer2 Period Register
Synchronous Serial Port (I
Unimplemented
Unimplemented
Unimplemented
Baud Rate Generator Register
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Unimplemented
Unimplemented
PSPIE
RBPU
CSRC
Bit 7
SMP
IRP
IBF
GIE
—
—
—
—
(6)
INTEDG
PEIE
Bit 6
RP1
OBF
CKE
TX9
(4)
—
—
—
—
PORTA Data Direction Register
2
TXEN
T0CS
C mode) Address Register
IBOV
RCIE
Bit 5
T0IE
RP0
D/A
—
—
—
Write Buffer for the upper 5 bits of the Program Counter
PSPMODE
SYNC
T0SE
INTE
Bit 4
TXIE
TO
—
—
P
SSPIE
RBIE
Bit 3
PSA
PD
—
—
—
—
S
PORTE Data Direction Bits
CCP1IE
BRGH
Bit 2
T0IF
R/W
PS2
—
—
Z
TMR2IE
TRMT
Bit 1
INTF
POR
PS1
DC
UA
—
TMR1IE
CCP2IE
TX9D
RBIF
Bit 0
BOR
PS0
BF
C
PIC16C6X
0000 0000 0000 0000
1111 1111 1111 1111
0000 0000 0000 0000
0001 1xxx 000q quuu
xxxx xxxx uuuu uuuu
--11 1111 --11 1111
1111 1111 1111 1111
1111 1111 1111 1111
1111 1111 1111 1111
0000 -111 0000 -111
---0 0000 ---0 0000
0000 000x 0000 000u
0000 0000 0000 0000
---- ---0 ---- ---0
---- --qq ---- --uu
1111 1111 1111 1111
0000 0000 0000 0000
0000 0000 0000 0000
0000 -010 0000 -010
0000 0000 0000 0000
Value on:
POR,
BOR
DS30234D-page 33
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Value on
resets
all other
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(3)