PIC16F/LF1946/47
REGISTER 12-2: PORTA: PORTA REGISTER
R/W-x/u
RA7
R/W-x/u
RA6
R/W-x/u
RA5
R/W-x/u
RA4
R/W-x/u
RA3
R/W-x/u
RA2
R/W-x/u
RA1
R/W-x/u
RA0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
u = Bit is unchanged
‘1’ = Bit is set
x = Bit is unknown
‘0’ = Bit is cleared
bit 7-0
RA<7:0>: PORTA I/O Value bits(1)
1= Port pin is > VIH
0= Port pin is < VIL
Note 1: Writes to PORTA are actually written to corresponding LATA register. Reads from PORTA register is return
of actual I/O pin values.
REGISTER 12-3: TRISA: PORTA TRI-STATE REGISTER
R/W-1/1
TRISA7
R/W-1/1
TRISA6
R/W-1/1
TRISA5
R/W-1/1
TRISA4
R/W-1/1
TRISA3
R/W-1/1
TRISA2
R/W-1/1
TRISA1
R/W-1/1
TRISA0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
u = Bit is unchanged
‘1’ = Bit is set
x = Bit is unknown
‘0’ = Bit is cleared
bit 7-0
TRISA<7:0>: PORTA Tri-State Control bit
1= PORTA pin configured as an input (tri-stated)
0= PORTA pin configured as an output
REGISTER 12-4: LATA: PORTA DATA LATCH REGISTER
R/W-x/u
LATA7
R/W-x/u
LATA6
R/W-x/u
LATA5
R/W-x/u
LATA4
R/W-x/u
LATA3
R/W-x/u
LATA2
R/W-x/u
LATA1
R/W-x/u
LATA0
bit 7
bit 0
Legend:
R = Readable bit
W = Writable bit
U = Unimplemented bit, read as ‘0’
-n/n = Value at POR and BOR/Value at all other Resets
u = Bit is unchanged
‘1’ = Bit is set
x = Bit is unknown
‘0’ = Bit is cleared
bit 7-0
LATA<7:0>: PORTA Output Latch Value bits(1)
Note 1: Writes to PORTA are actually written to corresponding LATA register. Reads from PORTA register is return
of actual I/O pin values.
DS41414A-page 124
Preliminary
2010 Microchip Technology Inc.
MICROCHIP [ MICROCHIP ]
