PIC16F913-ISLASHSS datasheet(73/330 Pages) MICROCHIP

73 / 330 page

DS41250F-page 71

PIC16F913/914/916/917/946

3.6

PORTD and TRISD Registers

PORTD is an 8-bit port with Schmitt Trigger input buffers.

Each pin is individually configured as an input or output.

PORTD is only available on the PIC16F914/917 and

PIC16F946.

EXAMPLE 3-4:

INITIALIZING PORTD

BANKSEL PORTD

;

CLRF

PORTD

;Init PORTD

BANKSEL TRISD

;

MOVLW

0FF

;Set RD<7:0> as inputs

MOVWF

TRISD

;

PORTD: PORTD REGISTER

R/W-x

RD7

RD6

RD5

RD4

RD3

RD2

RD1

RD0

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-0

RD<7:0>: PORTD I/O Pin bits

= Port pin is >VIH min.

= Port pin is <VIL max.

TRISD: PORTD TRI-STATE REGISTER

R/W-1

TRISD7

TRISD6

TRISD5

TRISD4

TRISD3

TRISD2

TRISD1

TRISD0

bit 7

bit 0

Legend:

R = Readable bit

W = Writable bit

U = Unimplemented bit, read as ‘0’

-n = Value at POR

‘1’ = Bit is set

‘0’ = Bit is cleared

x = Bit is unknown

bit 7-0

TRISD<7:0>: PORTD Tri-State Control bits

= PORTD pin configured as an input (tri-stated)

= PORTD pin configured as an output

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