2000 Microchip Technology Inc.
DS30605C-page 17
PIC16C63A/65B/73B/74B
TABLE 4-1:
SPECIAL FUNCTION REGISTER SUMMARY
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)
Bank 0
00h
INDF
(4)
Addressing this location uses contents of FSR to address data memory (not a physical register)
0000 0000 0000 0000
01h
TMR0
Timer0 module’s register
xxxx xxxx uuuu uuuu
02h
PCL
(4)
Program Counter's (PC) Least Significant Byte
0000 0000 0000 0000
03h
STATUS
(4)
IRP
(2)
RP1
(2)
RP0
TO
PD
Z
DC
C
0001 1xxx 000q quuu
04h
FSR
(4)
Indirect data memory address pointer
xxxx xxxx uuuu uuuu
05h
PORTA
—
—
PORTA Data Latch when written: PORTA pins when read
--0x 0000 --0u 0000
06h
PORTB
PORTB Data Latch when written: PORTB pins when read
xxxx xxxx uuuu uuuu
07h
PORTC
PORTC Data Latch when written: PORTC pins when read
xxxx xxxx uuuu uuuu
08h
PORTD
(5)
PORTD Data Latch when written: PORTD pins when read
xxxx xxxx uuuu uuuu
09h
PORTE
(5)
—
—
—
—
—
RE2
RE1
RE0
---- -xxx ---- -uuu
0Ah
PCLATH
(1,4)
—
—
—
Write Buffer for the upper 5 bits of the Program Counter
---0 0000 ---0 0000
0Bh
INTCON
(4)
GIE PEIE
T0IE
INTE
RBIE
T0IF
INTF
RBIF
0000 000x 0000 000u
0Ch
PIR1
PSPIF
(5)
ADIF
(6)
RCIF
TXIF
SSPIF
CCP1IF
TMR2IF
TMR1IF
0000 0000 0000 0000
0Dh
PIR2
—
—
—
–
—
—
—
CCP2IF
---- ---0 ---- ---0
0Eh
TMR1L
Holding register for the Least Significant Byte of the 16-bit TMR1 register
xxxx xxxx uuuu uuuu
0Fh
TMR1H
Holding register for the Most Significant Byte of the 16-bit TMR1 register
xxxx xxxx uuuu uuuu
10h
T1CON
—
—
T1CKPS1
T1CKPS0
T1OSCEN
T1SYNC
TMR1CS
TMR1ON
--00 0000 --uu uuuu
11h
TMR2
Timer2 module’s register
0000 0000 0000 0000
12h
T2CON
—
TOUTPS3 TOUTPS2
TOUTPS1
TOUTPS0
TMR2ON
T2CKPS1
T2CKPS0
-000 0000 -000 0000
13h
SSPBUF
Synchronous Serial Port Receive Buffer/Transmit Register
xxxx xxxx uuuu uuuu
14h
SSPCON
WCOL
SSPOV
SSPEN
CKP
SSPM3
SSPM2
SSPM1
SSPM0
0000 0000 0000 0000
15h
CCPR1L
Capture/Compare/PWM Register1 (LSB)
xxxx xxxx uuuu uuuu
16h
CCPR1H
Capture/Compare/PWM Register1 (MSB)
xxxx xxxx uuuu uuuu
17h
CCP1CON
—
—
CCP1X
CCP1Y
CCP1M3
CCP1M2
CCP1M1
CCP1M0
--00 0000 --00 0000
18h
RCSTA
SPEN
RX9
SREN
CREN
—
FERR
OERR
RX9D
0000 -00x 0000 -00x
19h
TXREG
USART Transmit Data register
0000 0000 0000 0000
1Ah
RCREG
USART Receive Data register
0000 0000 0000 0000
1Bh
CCPR2L
Capture/Compare/PWM Register2 (LSB)
xxxx xxxx uuuu uuuu
1Ch
CCPR2H
Capture/Compare/PWM Register2 (MSB)
xxxx xxxx uuuu uuuu
1Dh
CCP2CON
—
—
CCP2X
CCP2Y
CCP2M3
CCP2M2
CCP2M1
CCP2M0
--00 0000 --00 0000
1Eh
ADRES
(6)
A/D Result register
xxxx xxxx uuuu uuuu
1Fh
ADCON0
(6)
ADCS1
ADCS0
CHS2
CHS1
CHS0
GO/DONE
—
ADON
0000 00-0 0000 00-0
Legend:
x
= unknown,
u
= unchanged,
q
= value depends on condition, - = unimplemented, read as ’0’.
Shaded locations are unimplemented, read as ‘0’.
Note
1: The upper byte of the program counter is not directly accessible. PCLATH is a holding register for the PC<12:8>.
2: The IRP and RP1 bits are reserved; always maintain these bits clear.
3: Other (non power-up) RESETS include external RESET through MCLR and Watchdog Timer Reset.
4: These registers can be addressed from either bank.
5: PORTD, PORTE and the parallel slave port are not implemented on the PIC16C63A/73B; always maintain these bits and
registers clear.
6: The A/D is not implemented on the PIC16C63A/65B; always maintain these bits and registers clear.
Summary of Contents for PIC16C63A
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