Microchip Technology PIC16F716 Datasheet Download

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2003 Microchip Technology Inc.

Preliminary

DS41206A-page 9

PIC16F716

2.2.2

SPECIAL FUNCTION REGISTERS

The Special Function Registers are registers used by
the CPU and peripheral modules for controlling the
desired operation of the device. These registers are
implemented as static RAM. A list of these registers is
give in Table 2-1.

The Special Function Registers can be classified into
two sets; core (CPU) and peripheral. Those registers
associated with the core functions are described in
detail in this section. Those related to the operation of
the peripheral features are described in detail in that
peripheral feature section.

TABLE 2-1:

SPECIAL FUNCTION REGISTER SUMMARY BANK 0

Address

Name

Bit 7

Bit 6

Bit 5

Bit 4

Bit 3

Bit 2

Bit 1

Bit 0

Value on:

POR, BOR

Page

00h

INDF

(1)

Addressing this location uses contents of FSR to address data memory (not a physical register)

0000 0000

01h

TMR0

Timer0 module’s register

xxxx xxxx

02h

PCL

(1)

Program Counter's (PC) Least Significant Byte

0000 0000

03h

STATUS

(1)

IRP

(4)

RP1

(4)

RP0

0001 1xxx

04h

FSR

(1)

Indirect data memory address pointer

xxxx xxxx

05h

PORTA

(5,6)

—

(7)

PORTA Data Latch when written: PORTA pins when read

--xx 0000

06h

PORTB

(5,6)

PORTB Data Latch when written: PORTB pins when read

xxxx xxxx

07h-09h

—

Unimplemented

—

0Ah

PCLATH

(1,2)

—

Write Buffer for the upper 5 bits of the Program Counter

---0 0000

0Bh

INTCON

(1)

GIE PEIE

T0IE

INTE

RBIE

T0IF

INTF

RBIF

0000 000x

0Ch

PIR1

—

ADIF

—

CCP1IF

TMR2IF

TMR1IF

-0-- 0000

0Dh

—

Unimplemented

—

0Eh

TMR1L

Holding register for the Least Significant Byte of the 16-bit TMR1 register

xxxx xxxx

0Fh

TMR1H

Holding register for the Most Significant Byte of the 16-bit TMR1 register

xxxx xxxx

10h

T1CON

—

T1CKPS1

T1CKPS0

T1OSCEN

T1SYNC

TMR1CS

TMR1ON

--00 0000

11h

TMR2

Timer2 module’s register

0000 0000

12h

T2CON

—

TOUTPS3

TOUTPS2

TOUTPS1

TOUTPS0

TMR2ON

T2CKPS1

T2CKPS0

-000 0000

13h-14h

—

Unimplemented

—

15h

CCPR1L

Capture/Compare/PWM Register 1 (LSB)

xxxx xxxx

16h

CCPR1H

Capture/Compare/PWM Register 1 (MSB)

xxxx xxxx

17h

CCP1CON

P1M1

P1M0

DC1B1

DC1B0

CCP1M3

CCP1M2

CCP1M1

CCP1M0

0000 0000

18h

PWM1CON

PRSEN

PDC6

PDC5

PDC4

PDC3

PDC2

PDC1

PDC0

0000 0000

19h

ECCPAS

ECCPASE

ECCPAS2

—

(8)

ECCPAS0

PSSAC1

PSSAC0

PSSBD1

PSSBD0

00-0 0000

1Ah-1Dh

—

Unimplemented

—

1Eh

ADRES

A/D Result Register

xxxx xxxx

1Fh

ADCON0

ADCS1

ADCS0

CHS2

CHS1

CHS0

GO/DONE

—

(7)

ADON

0000 0000

Legend:

= unknown,

= unchanged,

= value depends on condition, - = unimplemented, read as ‘

’, Shaded locations are unimplemented,

read as ‘

’.

Note

These registers can be addressed from either bank.

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.

Other (non Power-up) Resets include: external Reset through MCLR and the Watchdog Timer Reset.

The IRP and RP1 bits are reserved. Always maintain these bits clear.

On any device Reset, these pins are configured as inputs.

This is the value that will be in the port output latch.

Reserved bits, do not use.

ECCPAS1 bit is not used on PIC16F716.