Datasheet

PIC16F913/914/916/917/946
DS41250F-page 84 © 2007 Microchip Technology Inc.
3.9
PORTG and TRISG Registers
PORTG is an 8-bit port with Schmitt Trigger input
buffers. RG<5:0> are individually configured as inputs
or outputs, depending on the state of the port direction.
The port bits are also multiplexed with LCD segment
functions. PORTG is available on the PIC16F946 only.
EXAMPLE 3-7: INITIALIZING PORTG
BANKSEL PORTG ;
CLRF PORTG ;Init PORTG
BANKSEL TRISG ;
MOVLW 3Fh ;Set RG<5:0> as inputs
MOVWF TRISG ;
REGISTER 3-16: PORTG: PORTG REGISTER
(1)
U-0 U-0 R/W-x R/W-x R/W-x R/W-x R/W-x R/W-x
— — RG5 RG4 RG3 RG2 RG1 RG0
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 7-6 Unimplemented: Read as ‘0’
bit 5-0 RG<5:0>: PORTG I/O Pin bits
1 = Port pin is >V
IH min.
0 = Port pin is <V
IL max.
Note 1: PIC16F946 only.
REGISTER 3-17: TRISG: PORTG TRI-STATE REGISTER
(1)
U-0 U-0 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1 R/W-1
— — TRISG5 TRISG4 TRISG3 TRISG2 TRISG1 TRISG0
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 7-6 Unimplemented: Read as ‘0’
bit 5-0 TRISF<5:0>: PORTG Tri-State Control bits
1 = PORTG pin configured as an input (tri-stated)
0 = PORTG pin configured as an output
Note 1: PIC16F946 only.