PIC16C71 registers

All 15 registers by peripheral, at their data-memory address as the register file map gives it (bank and offset), with their reset value and every bit.

CPU CPU core

INDF

Address
0x00
Reset
0x00
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1–
  8. 0–

PCL

Address
0x02
Reset
0x00
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1–
  8. 0–

STATUS

Address
0x03
Reset
x (not fixed at power-on)
Access
read/write
  1. 7IRP
  2. 6RP1
  3. 5RP0
  4. 4nTO
  5. 3nPD
  6. 2Z
  7. 1DC
  8. 0C
7 fields
FieldBitsWhat it does
IRP7
RP6:5
nTO4
nPD3
Z2
DC1
C0

FSR

Address
0x04
Reset
x (not fixed at power-on)
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1–
  8. 0–

PCLATH

Address
0x0A
Reset
0x00
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1–
  8. 0–

TMR0 Timer0

TMR0

Address
0x01
Reset
x (not fixed at power-on)
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1–
  8. 0–

OPTION_REG

Address
0x81
Reset
0xFF
Access
read/write
  1. 7nRBPU
  2. 6INTEDG
  3. 5T0CS
  4. 4T0SE
  5. 3PSA
  6. 2PS2
  7. 1PS1
  8. 0PS0
6 fields
FieldBitsWhat it does
nRBPU7
INTEDG6
T0CS5
T0SE4
PSA3
PS2:0

PORTA I/O port A

PORTA

Address
0x05
Reset
x (not fixed at power-on)
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4RA4
  5. 3RA3
  6. 2RA2
  7. 1RA1
  8. 0RA0
5 fields
FieldBitsWhat it does
RA44
RA33
RA22
RA11
RA00

TRISA

Address
0x85
Reset
0x1F
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4TRISA4
  5. 3TRISA3
  6. 2TRISA2
  7. 1TRISA1
  8. 0TRISA0
5 fields
FieldBitsWhat it does
TRISA44
TRISA33
TRISA22
TRISA11
TRISA00

PORTB I/O port B

PORTB

Address
0x06
Reset
x (not fixed at power-on)
Access
read/write
  1. 7RB7
  2. 6RB6
  3. 5RB5
  4. 4RB4
  5. 3RB3
  6. 2RB2
  7. 1RB1
  8. 0RB0
8 fields
FieldBitsWhat it does
RB77
RB66
RB55
RB44
RB33
RB22
RB11
RB00

TRISB

Address
0x86
Reset
0xFF
Access
read/write
  1. 7TRISB7
  2. 6TRISB6
  3. 5TRISB5
  4. 4TRISB4
  5. 3TRISB3
  6. 2TRISB2
  7. 1TRISB1
  8. 0TRISB0
8 fields
FieldBitsWhat it does
TRISB77
TRISB66
TRISB55
TRISB44
TRISB33
TRISB22
TRISB11
TRISB00

ADC Analog-to-digital converter

ADCON0

Address
0x08
Reset
0x00
Access
read/write
  1. 7ADCS1
  2. 6ADCS0
  3. 5–
  4. 4CHS1
  5. 3CHS0
  6. 2GO/nDONE
  7. 1ADIF
  8. 0ADON
5 fields
FieldBitsWhat it does
ADCS7:6
CHS4:3
GO/nDONE2
ADIF1
ADON0

ADRES

Address
0x09
Reset
x (not fixed at power-on)
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1–
  8. 0–

ADCON1

Address
0x88
Reset
0x00
Access
read/write
  1. 7–
  2. 6–
  3. 5–
  4. 4–
  5. 3–
  6. 2–
  7. 1PCFG1
  8. 0PCFG0
1 field
FieldBitsWhat it does
PCFG1:0

INTERRUPT Interrupts

INTCON

Address
0x0B
Reset
x (not fixed at power-on)
Access
read/write
  1. 7GIE
  2. 6ADIE
  3. 5T0IE
  4. 4INTE
  5. 3RBIE
  6. 2T0IF
  7. 1INTF
  8. 0RBIF
8 fields
FieldBitsWhat it does
GIE7
ADIE6
T0IE5
INTE4
RBIE3
T0IF2
INTF1
RBIF0