PIC16F917-I/ML View Datasheet(PDF) - Microchip Technology
Part Name
Description
MFG CO.
PIC16F917-I/ML
Microchip Technology
PIC16F917-I/ML Datasheet PDF : 330 Pages
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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:
BANKSEL PORTD
CLRF PORTD
BANKSEL TRISD
MOVLW 0FF
MOVWF TRISD
INITIALIZING PORTD
;
;Init PORTD
;
;Set RD<7:0> as inputs
;
REGISTER 3-10: PORTD: PORTD REGISTER
R/W-x
RD7
bit 7
R/W-x
RD6
R/W-x
RD5
R/W-x
RD4
R/W-x
RD3
R/W-x
RD2
R/W-x
RD1
R/W-x
RD0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
RD<7:0>: PORTD I/O Pin bits
1 = Port pin is >VIH min.
0 = Port pin is <VIL max.
REGISTER 3-11: TRISD: PORTD TRI-STATE REGISTER
R/W-1
TRISD7
bit 7
R/W-1
TRISD6
R/W-1
TRISD5
R/W-1
TRISD4
R/W-1
TRISD3
R/W-1
TRISD2
R/W-1
TRISD1
R/W-1
TRISD0
bit 0
Legend:
R = Readable bit
-n = Value at POR
W = Writable bit
‘1’ = Bit is set
U = Unimplemented bit, read as ‘0’
‘0’ = Bit is cleared
x = Bit is unknown
bit 7-0
TRISD<7:0>: PORTD Tri-State Control bits
1 = PORTD pin configured as an input (tri-stated)
0 = PORTD pin configured as an output
© 2007 Microchip Technology Inc.
DS41250F-page 71
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